main/gcc: disable zstd support

closes #14537

perhaps solved by golang/go#55107 eventually, adding the same support to go

golang.... google.....

Author: nekopsykose

main/gcc/APKBUILD

@@ -10,15 +10,15 @@ pkgver=${_pkgbase}_git$_pkgsnap
 [ "$CHOST" != "$CTARGET" ] && _target="-$CTARGET_ARCH" || _target=""
 
 pkgname="$pkgname$_target"
-pkgrel=7
+pkgrel=8
 pkgdesc="The GNU Compiler Collection"
 url="https://gcc.gnu.org"
 arch="all"
 license="GPL-2.0-or-later LGPL-2.1-or-later"
 _gccrel=$pkgver-r$pkgrel
 depends="binutils$_target"
 makedepends_build="gcc$_cross g++$_cross bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev"
-makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev !gettext-dev libucontext-dev zstd-dev"
+makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev !gettext-dev libucontext-dev"
 subpackages=" "
 [ "$CHOST" = "$CTARGET" ] && subpackages="gcc-doc$_target"
 replaces="libstdc++ binutils"