Shows that it switches focus to some other process window and back, and
only on some older Windows versions. Win10 simply returns 0 and does
nothing.

Stop calling it elsewhere, as it makes focus go to an unpredictable
window, which may very well not be ours.

Wine-Bug: https://bugs.winehq.org//show_bug.cgi?id=51391
Wine-Bug: https://bugs.winehq.org//show_bug.cgi?id=51130Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>