Address comments

Author: vishesh92

systemvm/agent/noVNC/app/ui.js

@@ -1775,10 +1775,6 @@ const UI = {
 
     // Release all currently pressed modifier keys
     _releaseAllModifierKeys() {
-        if (!UI.rfb) {
-            return false;
-        }
-
         let keysReleased = false;
 
         // Release all modifier keys
@@ -1790,7 +1786,6 @@ const UI = {
         return keysReleased;
     },
 
-
     // Move focus to the screen in order to be able to use the
     // keyboard right after these extra keys.
     // The exception is when a virtual keyboard is used, because