Undecided, it is indeed unused but just because

./src/editor/editor.cpp:357: //BrowserWidget *htmlPart = new BrowserWidget(browserDock);

Is commented out, do you have time to read the git log to figure out if it is commented because of porting issues or because it is a feature that was never finished?

In D6827#127516, @aacid wrote:

Is commented out, do you have time to read the git log to figure out if it is commented because of porting issues or because it is a feature that was never finished?

Apparently the plan is to reenable it
https://github.com/KDE/parley/commit/dd663f5417994abca089ea6b2bb6daeeaa92011d

So only comment it out instead of removing it

+1