Removed the execute method from MSSQL. It is provided by DboDatasourc…

…e now.

lib/Cake/Model/Datasource/Database/Mssql.php

@@ -146,18 +146,6 @@ public function enabled() {
 		return in_array('sqlsrv', PDO::getAvailableDrivers());
 	}
 
-/**
- * Executes given SQL statement.
- *
- * @param string $sql SQL statement
- * @return resource Result resource identifier
- */
-	protected function _execute($sql) {
-		$result = @mssql_query($sql, $this->connection);
-		$this->__lastQueryHadError = ($result === false);
-		return $result;
-	}
-
 /**
  * Returns an array of sources (tables) in the database.
  *