remove cache valid bailout clause

include/rssfuncs.php

@@ -266,16 +266,12 @@
 
 			_debug("using local cache.", $debug_enabled);
 
-				if ($cache_timestamp > $last_article_timestamp) {
 			@$feed_data = file_get_contents($cache_filename);
 
 			if ($feed_data) {
 				$rss_hash = sha1($feed_data);
 			}
-				} else if (!$force_refetch) {
-					_debug("local cache valid and older than last_updated, nothing to do.", $debug_enabled);
-					return;
-				}
+
 		} else {
 			_debug("local cache will not be used for this feed", $debug_enabled);
 		}