Fix JS error due to disabled JS based hotkeys because of FS#1958

lib/exe/js.php

@@ -117,7 +117,7 @@ function js_out(){
     js_runonstart('scrollToMarker()');
     js_runonstart('focusMarker()');
     // init hotkeys - must have been done after init of toolbar
-    js_runonstart('initializeHotkeys()');
+# disabled for FS#1958    js_runonstart('initializeHotkeys()');
 
     // end output buffering and get contents
     $js = ob_get_contents();