remove test that looks for mandatory mysqli parameters (Which should not be mandatory)

tests/Doctrine/Tests/DBAL/Driver/Mysqli/MysqliConnectionTest.php

@@ -50,34 +50,5 @@ class MysqliConnectionTest extends DbalTestCase
         restore_error_handler();
     }
 
-    /**
-     * @dataProvider secureMissingParamsProvider
-     */
-    public function testThrowsExceptionWhenMissingMandatorySecureParams(array $secureParams)
-    {
-        $this->expectException(MysqliException::class);
-        $msg = '"ssl_key" and "ssl_cert" parameters are mandatory when using secure connection parameters.';
-        $this->expectExceptionMessage($msg);
-
-        new MysqliConnection($secureParams, 'xxx', 'xxx');
-    }
-
-    public function secureMissingParamsProvider()
-    {
-        return [
-            [
-                ['ssl_cert' => 'cert.pem']
-            ],
-            [
-                ['ssl_key' => 'key.pem']
-            ],
-            [
-                ['ssl_key' => 'key.pem', 'ssl_ca' => 'ca.pem', 'ssl_capath' => 'xxx', 'ssl_cipher' => 'xxx']
-            ],
-            [
-                ['ssl_ca' => 'ca.pem', 'ssl_capath' => 'xxx', 'ssl_cipher' => 'xxx']
-            ]
-        ];
-    }
 }