Remove uneeded file

I don't saw any usage of this file through the code, I assume it can
safely be removed.

apps/files/ajax/autocomplete.php

-<?php
-//provide auto completion of paths for use with jquer ui autocomplete
-
-
-// Init owncloud
-
-
-OCP\JSON::checkLoggedIn();
-
-// Get data
-$query = $_GET['term'];
-$dirOnly=(isset($_GET['dironly']))?($_GET['dironly']=='true'):false;
-
-if($query[0]!='/') {
-	$query='/'.$query;
-}
-
-if(substr($query, -1, 1)=='/') {
-	$base=$query;
-} else {
-	$base=dirname($query);
-}
-
-$query=substr($query, strlen($base));
-
-if($base!='/') {
-	$query=substr($query, 1);
-}
-$queryLen=strlen($query);
-$query=strtolower($query);
-
-// echo "$base - $query";
-
-$files=array();
-
-if(OC_Filesystem::file_exists($base) and OC_Filesystem::is_dir($base)) {
-	$dh = OC_Filesystem::opendir($base);
-	if($dh) {
-		if(substr($base, -1, 1)!='/') {
-			$base=$base.'/';
-		}
-		while (($file = readdir($dh)) !== false) {
-			if ($file != "." && $file != "..") {
-				if(substr(strtolower($file), 0, $queryLen)==$query) {
-					$item=$base.$file;
-					if((!$dirOnly or OC_Filesystem::is_dir($item))) {
-						$files[]=(object)array('id'=>$item, 'label'=>$item, 'name'=>$item);
-					}
-				}
-			}
-		}
-	}
-}
-OCP\JSON::encodedPrint($files);