The macro is not documented, so not part of the public Qt API. It is
made obsolete by the alignof keyword in C++11.
Remove the usage of the macro across qtbase, in particular the
workarounds for compilers that didn't support alignof, and that will
not be supported in Qt 6.
The macro definition is left in place, no need to break existing
code.
Task-number: QTBUG-76414
Change-Id: I1cfedcd4dd748128696cdfb546d97aae4f98c3da
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
226a60baf5