Backport backout of old mingw-gcc patch for 9.5a1
We should backport the fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1585351 and test it in 9.5a1
We should backport the fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1585351 and test it in 9.5a1