Hide upload table in onlyoffice

www/common/onlyoffice/app-oo.less

@@ -27,6 +27,10 @@ body.cp-app-sheet, body.cp-app-oodoc, body.cp-app-ooslide {
         );
     }
 
+    #cp-fileupload {
+        display: none !important;
+    }
+
     #cp-toolbar {
         display: flex; // We need this to remove a 3px border at the bottom of the toolbar
     }