Update MemcacheEngine.php

removing variable assignment

lib/Cake/Cache/Engine/MemcacheEngine.php

@@ -205,13 +205,13 @@ class MemcacheEngine extends CacheEngine {
 		if ($check) {
 			return true;
 		}
-		foreach ($this->_Memcache->getExtendedStats('slabs', $limit=0) as $slabs) {
+		foreach ($this->_Memcache->getExtendedStats('slabs') as $slabs) {
 			foreach (array_keys($slabs) as $slabId) {
 				if (!is_numeric($slabId)) {
 					continue;
 				}
 
-				foreach ($this->_Memcache->getExtendedStats('cachedump', $slabId, $limit=0) as $stats) {
+				foreach ($this->_Memcache->getExtendedStats('cachedump', $slabId, 0) as $stats) {
 					if (!is_array($stats)) {
 						continue;
 					}