Removing trigger_warning() that causes tests to fail in Sqlite, as

it does not assign lengths for integer columns.

lib/Cake/Model/Datasource/DboSource.php

@@ -2694,11 +2694,10 @@ public function hasAny($Model, $sql) {
  * Gets the length of a database-native column description, or null if no length
  *
  * @param string $real Real database-layer column type (i.e. "varchar(255)")
- * @return mixed An integer or string representing the length of the column
+ * @return mixed An integer or string representing the length of the column, or null for unknown length.
  */
 	public function length($real) {
 		if (!preg_match_all('/([\w\s]+)(?:\((\d+)(?:,(\d+))?\))?(\sunsigned)?(\szerofill)?/', $real, $result)) {
-			trigger_error(__d('cake_dev', "FIXME: Can't parse field: " . $real), E_USER_WARNING);
 			$col = str_replace(array(')', 'unsigned'), '', $real);
 			$limit = null;