Remove ELF-only no-plt flag from mingw-w64-environment

This is an elf-only flag and specifying it on PE targets has no effect -
except that it actually has a quite negative effect when used with LLVM/Clang
as of LLVM 19 (see
llvm/llvm-project#78890 (comment)).
So it is probably better to avoid this flag (regardless of the used toolchain).
LLVM will also warn about it in the future (see
llvm/llvm-project#124081).

environment/mingw-w64/PKGBUILD

@@ -1,6 +1,6 @@
 pkgname=mingw-w64-environment
 pkgver=1
-pkgrel=6
+pkgrel=7
 arch=('any')
 pkgdesc="Script providing common environment variables and functions for MinGW (mingw-w64)"
 license=("BSD")

environment/mingw-w64/mingw-env.sh

@@ -3,7 +3,7 @@
 _mingw_arch=$1
 
 default_mingw_pp_flags="-D_FORTIFY_SOURCE=3 -D_GLIBCXX_ASSERTIONS"
-default_mingw_compiler_flags="$default_mingw_pp_flags -O2 -pipe -fno-plt -fexceptions --param=ssp-buffer-size=4 -Wformat -Werror=format-security -fcf-protection"
+default_mingw_compiler_flags="$default_mingw_pp_flags -O2 -pipe -fexceptions --param=ssp-buffer-size=4 -Wformat -Werror=format-security -fcf-protection"
 default_mingw_linker_flags="-Wl,-O1,--sort-common,--as-needed -fstack-protector"
 
 export CPPFLAGS="${MINGW_CPPFLAGS:-$default_mingw_pp_flags $CPPFLAGS}"