ci: Purge Drone config files (#520)

Author: zguesmi

.dockerignore

@@ -2,8 +2,6 @@
 # ignore everything
 *
 # but subgraph deps
-!/environments/
 !/packages/subgraph/
 /packages/subgraph/generated/
 /packages/subgraph/build/
-/packages/subgraph/.drone.yml

.drone-consider

@@ -31,7 +31,3 @@ npx hardhat ignition verify chain-43113
 ```
 
 This ensures the contract's source code is verified on the blockchain explorer for the specified network.
-
-## Deployed Contract Address
-
-Refer to the `../../environments/environments.json` file to find the deployed contract address for the respective environment.

.drone.yml

@@ -8,10 +8,6 @@
       "matchFileNames": ["**/*Dockerfile"],
       "groupName": "dockerfiles"
     },
-    {
-      "matchFileNames": ["**/.drone.yml"],
-      "groupName": "drone-ci-configs"
-    },
     {
       "matchFileNames": ["packages/dataprotector-deserializer/**"],
       "groupName": "dataprotector-deserializer"