It seems some things went wrong with the sqlsrv-merge, fixed now

lib/Doctrine/DBAL/Platforms/MsSqlPlatform.php

@@ -714,38 +714,4 @@ DROP DATABASE ' . $name . ';';
     {
         return 'ROLLBACK TRANSACTION ' . $savepoint;
     }
-
-    /**
-     * Generate SQL to create a new savepoint
-     *
-     * @param string $savepoint
-     * @return string
-     */
-    public function createSavePoint($savepoint)
-    {
-        return 'SAVE TRANSACTION ' . $savepoint;
-    }
-
-    /**
-     * Generate SQL to release a savepoint
-     *
-     * @param string $savepoint
-     * @return string
-     */
-    public function releaseSavePoint($savepoint)
-    {
-        return '';
-    }
-
-    /**
-     * Generate SQL to rollback a savepoint
-     *
-     * @param string $savepoint
-     * @return string
-     */
-    public function rollbackSavePoint($savepoint)
-    {
-        return 'ROLLBACK TRANSACTION ' . $savepoint;
-    }
-
 }

tests/Doctrine/Tests/DBAL/Platforms/MsSqlPlatformTest.php

@@ -68,6 +68,9 @@ class MsSqlPlatformTest extends AbstractPlatformTestCase
     public function testGeneratesDDLSnippets()
     {
         $dropDatabaseExpectation = <<<DDB
+ALTER DATABASE [foobar]
+SET SINGLE_USER
+WITH ROLLBACK IMMEDIATE;
 DROP DATABASE foobar;
 DDB;