Revert "Add option to check for value presence, while allowing empty values"

This reverts commit f271f20.

Author: ilijastuden

src/Validator.php

@@ -34,10 +34,7 @@ public function __construct(
      * Note: strings are trimmed prior to check, and values that empty() would return true for (like '0') are considered
      * to be present (because we check strlen(trim($value))).
      */
-    public function present(
-        string $field_name,
-        bool $allow_empty = false,
-    ): bool
+    public function present(string $field_name): bool
     {
         if (empty($field_name)) {
             throw new InvalidArgumentException(
@@ -49,10 +46,6 @@ public function present(
             return $this->failPresenceValidation($field_name);
         }
 
-        if ($allow_empty && empty($this->field_values[$field_name])) {
-            return true;
-        }
-
         if (is_string($this->field_values[$field_name])) {
             if (mb_strlen(trim($this->field_values[$field_name])) > 0) {
                 return true;

test/src/PresenceValidatorTest.php

@@ -42,21 +42,6 @@ public function testPass()
         $this->assertCount(0, $name_errors);
     }
 
-    public function testPassAllowEmpty()
-    {
-        $validator = new Validator($this->connection, 'writers', null, null, ['name' => '']);
-
-        $is_present = $validator->present('name', true);
-
-        $this->assertTrue($is_present);
-        $this->assertFalse($validator->hasErrors());
-
-        $name_errors = $validator->getFieldErrors('name');
-
-        $this->assertIsArray($name_errors);
-        $this->assertCount(0, $name_errors);
-    }
-
     /**
      * Test validation failure.
      */