Remove serverless related code and dependencies

This includes `ScyllaCloudConnectionConfig`, `CloudConfigYamlParsingTest`
and methods in `Cluster` and `CCMTestsSupport`.
BouncyCastle dependencies were removed since they are no longer needed.

Fixes #670

Author: Bouncheck

clirr-ignores.xml

@@ -37,6 +37,34 @@
         <justification>Replacing Datastax Cloud with Scylla Cloud. Removing confusing code that won't be maintained.</justification>
     </difference>
 
+    <difference>
+        <differenceType>7002</differenceType> <!-- method removed -->
+        <className>com/datastax/driver/core/Cluster$Builder</className>
+        <method>com.datastax.driver.core.Cluster$Builder withScyllaCloudConnectionConfig(java.io.File)</method>
+        <justification>Serverless was dropped. This code has no use anymore.</justification>
+    </difference>
+
+    <difference>
+        <differenceType>7002</differenceType> <!-- method removed -->
+        <className>com/datastax/driver/core/Cluster$Builder</className>
+        <method>com.datastax.driver.core.Cluster$Builder withScyllaCloudConnectionConfig(java.net.URL)</method>
+        <justification>Serverless was dropped. This code has no use anymore.</justification>
+    </difference>
+
+    <difference>
+        <differenceType>7002</differenceType> <!-- method removed -->
+        <className>com/datastax/driver/core/Cluster$Builder</className>
+        <method>com.datastax.driver.core.Cluster$Builder withScyllaCloudConnectionConfig(java.io.InputStream)</method>
+        <justification>Serverless was dropped. This code has no use anymore.</justification>
+    </difference>
+
+    <difference>
+        <differenceType>7002</differenceType> <!-- method removed -->
+        <className>com/datastax/driver/core/Cluster$Builder</className>
+        <method>com.datastax.driver.core.Cluster$Builder withScyllaCloudConnectionConfig(com.datastax.driver.core.ScyllaCloudConnectionConfig)</method>
+        <justification>Serverless was dropped. This code has no use anymore.</justification>
+    </difference>
+
     <difference>
         <differenceType>7004</differenceType> <!-- the number of arguments has changed -->
         <className>com/datastax/driver/core/Metadata</className>

driver-core/pom.xml

@@ -176,24 +176,6 @@
             <groupId>com.fasterxml.jackson.dataformat</groupId>
             <artifactId>jackson-dataformat-yaml</artifactId>
         </dependency>
-        <!-- https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk18on -->
-        <dependency>
-            <groupId>org.bouncycastle</groupId>
-            <artifactId>bcprov-jdk18on</artifactId>
-            <version>1.82</version>
-        </dependency>
-        <!-- https://mvnrepository.com/artifact/org.bouncycastle/bcpkix-jdk18on -->
-        <dependency>
-            <groupId>org.bouncycastle</groupId>
-            <artifactId>bcpkix-jdk18on</artifactId>
-            <version>1.82</version>
-        </dependency>
-        <!-- https://mvnrepository.com/artifact/org.bouncycastle/bcutil-jdk18on -->
-        <dependency>
-            <groupId>org.bouncycastle</groupId>
-            <artifactId>bcutil-jdk18on</artifactId>
-            <version>1.82</version>
-        </dependency>
 
         <!-- added for easier DNS hostname resolution mocking -->
         <dependency>

driver-core/src/main/java/com/datastax/driver/core/Cluster.java

@@ -60,14 +60,9 @@
 import com.google.common.util.concurrent.SettableFuture;
 import com.google.common.util.concurrent.Uninterruptibles;
 import java.io.Closeable;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
-import java.net.URL;
 import java.net.UnknownHostException;
-import java.security.GeneralSecurityException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -1384,92 +1379,6 @@ public Builder withNoCompact() {
       return this;
     }
 
-    /**
-     * Configure for Scylla Cloud Serverless cluster using configuration bundle.
-     *
-     * @param configurationFile configuration bundle file.
-     * @return this builder.
-     * @throws IOException
-     * @see Builder#withScyllaCloudConnectionConfig(ScyllaCloudConnectionConfig)
-     */
-    public Builder withScyllaCloudConnectionConfig(File configurationFile) throws IOException {
-      return withScyllaCloudConnectionConfig(configurationFile.toURI().toURL());
-    }
-
-    /**
-     * Configure for Scylla Cloud Serverless cluster using URL to configuration bundle.
-     *
-     * @param configurationUrl URL from which configuration bundle can be read.
-     * @return this builder.
-     * @throws IOException
-     * @see Builder#withScyllaCloudConnectionConfig(ScyllaCloudConnectionConfig)
-     */
-    public Builder withScyllaCloudConnectionConfig(URL configurationUrl) throws IOException {
-      return withScyllaCloudConnectionConfig(configurationUrl.openStream());
-    }
-
-    /**
-     * Configure for Scylla Cloud Serverless cluster using InputStream of configuration bundle.
-     *
-     * @param inputStream input stream containing configuration bundle format data.
-     * @return this builder.
-     * @throws IOException
-     * @see Builder#withScyllaCloudConnectionConfig(ScyllaCloudConnectionConfig)
-     */
-    public Builder withScyllaCloudConnectionConfig(InputStream inputStream) throws IOException {
-      return withScyllaCloudConnectionConfig(
-          ScyllaCloudConnectionConfig.fromInputStream(inputStream));
-    }
-
-    /**
-     * Sets a collection of options for connecting to Scylla Cloud Serverless cluster.
-     *
-     * <p>Sets several options according to provided {@link ScyllaCloudConnectionConfig}. This
-     * includes calling {@link Builder#withEndPointFactory(EndPointFactory)}, {@link
-     * Builder#withSSL(SSLOptions)}, {@link Builder#withAuthProvider(AuthProvider)}, {@link
-     * Builder#withoutAdvancedShardAwareness()} with parameters derived from the config.
-     *
-     * <p>Cannot be combined with {@link Builder#addContactPoint}. All contact points should already
-     * be provided in {@link ScyllaCloudConnectionConfig}.
-     *
-     * @param config instantiated ScyllaCloudConnectionConfig.
-     * @return this builder.
-     */
-    protected Builder withScyllaCloudConnectionConfig(ScyllaCloudConnectionConfig config) {
-      try {
-        ScyllaCloudDatacenter currentDatacenter = config.getCurrentDatacenter();
-        InetSocketAddress proxyAddress = currentDatacenter.getServer();
-
-        Builder builder =
-            withEndPointFactory(
-                    new ScyllaCloudSniEndPointFactory(
-                        proxyAddress, currentDatacenter.getNodeDomain()))
-                .withSSL(
-                    (config.getCurrentDatacenter().isInsecureSkipTlsVerify()
-                        ? config.createBundle().getInsecureSSLOptions()
-                        : config.createBundle().getSSLOptions()))
-                .withAuthProvider(
-                    new PlainTextAuthProvider(
-                        config.getCurrentAuthInfo().getUsername(),
-                        config.getCurrentAuthInfo().getPassword()))
-                .withoutAdvancedShardAwareness();
-
-        if (builder.rawHostContactPoints.size() > 0
-            || builder.rawHostAndPortContactPoints.size() > 0
-            || builder.contactPoints.size() > 0) {
-          throw new IllegalStateException(
-              "Can't use withCloudSecureConnectBundle if you've already called addContactPoint(s)");
-        }
-        builder.addContactPoint(new SniEndPoint(proxyAddress, currentDatacenter.getNodeDomain()));
-
-        return builder;
-      } catch (IOException e) {
-        throw new IllegalStateException("Cannot construct cloud config", e);
-      } catch (GeneralSecurityException e) {
-        throw new IllegalStateException("Cannot construct cloud config", e);
-      }
-    }
-
     /**
      * Disables advanced shard awareness. By default, this driver chooses local port while making a
      * connection to node, to signal which shard it wants to connect to. This allows driver to