remove redundant WHERE condition

classes/class-admin.php

@@ -766,7 +766,7 @@ private function erase_stream_records() {
 					FROM {$wpdb->stream} AS `stream`
 					LEFT JOIN {$wpdb->streammeta} AS `meta`
 					ON `meta`.`record_id` = `stream`.`ID`
-					WHERE 1=1 AND `blog_id`=%d;",
+					WHERE `blog_id`=%d;",
 					get_current_blog_id()
 				)
 			);