clean cache interface

lib/public/files/cache/icache.php

@@ -156,13 +156,6 @@ interface ICache {
 	 */
 	public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath);
 
-	/**
-	 * remove all entries for files that are stored on the storage from the cache
-	 *
-	 * @since 9.0.0
-	 */
-	public function clear();
-
 	/**
 	 * Get the scan status of a file
 	 *
@@ -209,14 +202,6 @@ interface ICache {
 	 */
 	public function searchByTag($tag, $userId);
 
-	/**
-	 * get all file ids on the files on the storage
-	 *
-	 * @return int[]
-	 * @since 9.0.0
-	 */
-	public function getAll();
-
 	/**
 	 * find a folder in the cache which has not been fully scanned
 	 *