Remove unused methods and proprity

tests/Doctrine/Tests/Mocks/ConnectionMock.php

@@ -4,11 +4,6 @@ namespace Doctrine\Tests\Mocks;
 
 class ConnectionMock extends \Doctrine\DBAL\Connection
 {
-    /**
-     * @var
-     */
-    private $_fetchOneResult;
-
     /**
      * @var DatabasePlatformMock
      */
@@ -58,14 +53,6 @@ class ConnectionMock extends \Doctrine\DBAL\Connection
         return $this->_lastInsertId;
     }
 
-    /**
-     * @override
-     */
-    public function fetchColumn($statement, array $params = array(), $colnum = 0, array $types = array())
-    {
-        return $this->_fetchOneResult;
-    }
-
     /**
      * @override
      */
@@ -77,13 +64,6 @@ class ConnectionMock extends \Doctrine\DBAL\Connection
         return $input;
     }
 
-    /* Mock API */
-
-    public function setFetchOneResult($fetchOneResult)
-    {
-        $this->_fetchOneResult = $fetchOneResult;
-    }
-
     public function setLastInsertId($id)
     {
         $this->_lastInsertId = $id;