This fixes the toolbar in FileZilla 3.8 being drawn wrong (grey)
It regressed by 0.4.15-dev-1603-g 232c45fcd7
And todays fix is a partial revert of that guilty rev.
The reverted part is not even necessarily needed for what we had in mind back then,
It was just a first tiny step with the aim to get rid of the comctl32.h changes of that commit.
But that goal was and even is far out of reach for many other reasons also.
Actually we should have reverted the toolbar.c change back then already,
before committing the "flipfix9".
CORE-18263
