arm-none-eabi-gcc: drop mingw32

this package times out in CI and takes ages to build locally,
so limit the targets we build for.

mingw-w64-arm-none-eabi-gcc/PKGBUILD

@@ -13,7 +13,7 @@ pkgver=12.2.0
 pkgrel=1
 pkgdesc='GNU Tools for ARM Embedded Processors - GCC (mingw-w64)'
 arch=('any')
-mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64')
+mingw_arch=('mingw64' 'ucrt64' 'clang64')
 license=('GPL')
 url='https://www.gnu.org/software/gcc/gcc.html'
 groups=("${MINGW_PACKAGE_PREFIX}-${_target}-toolchain")