Remove completely present windows

Marco Martin requested to merge work/mart/removePresentWindows into master

since it has been replaced by windowview, and Desktop Grid is ported as well, remove present windows which is effectively dead code now

BUG:447001 BUG:362844 BUG:450487 BUG:453426 BUG:374481 BUG:185381 BUG:413342 BUG:451150 BUG:283333 BUG:315314 BUG:397500 BUG:321236 BUG:436572 BUG:335782

Edited by Marco Martin

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