removed misleading error logs

frontend-js/src/main/js/GuiConnector.js

@@ -217,12 +217,6 @@ GuiConnector.prototype.getErrorMessageForError = function (error) {
     message = error.message;
   } else if (message instanceof GuiMessageError) {
     message = error.message;
-  } else if (message instanceof NetworkError && (error.message === "XHR error" || error.message === "Failed to fetch")) {
-    message = "File to big.<br>Please reduce file size or contact administrators.";
-  } else if (message instanceof ValidationError) {
-    message = error.message;
-  } else if (message instanceof GuiMessageError) {
-    message = error.message;
   } else if (message instanceof Error) {
     message = "Unexpected error occurred:<p>" + error.message + "</p>";
   }