macOS: Remove special handling for hiding tool windows on application hide

The code was needed when we had QCocoaWindow::hide(), that guarded the
ordering out by checking the visible state of the NSWindow. We no longer
have that method, and setVisible doesn't have the same guard.

Added a comment in setVisible to prevent future travelers from adding
logic that introduces the same situation.

Change-Id: I0514619a303daceb1cd7d334f0de4bfce6c3e96f
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

0 files changed, 0 insertions, 0 deletions