build-package.sh: do not set -Wl,-z,relro,-z,now ldflags for Golang CGO

Causes this error when building Golang projects:

 invalid flag in go:cgo_ldflag: -Wl,-z,relro,-z,now

packages/golang/build.sh

@@ -12,8 +12,6 @@ TERMUX_PKG_NO_STATICSPLIT=true
 termux_step_make_install() {
 	termux_setup_golang
 
-	CGO_LDFLAGS=${CGO_LDFLAGS/-Wl,-z,relro,-z,now/}
-
 	TERMUX_GOLANG_DIRNAME=${GOOS}_$GOARCH
 	TERMUX_GODIR=$TERMUX_PREFIX/lib/go
 

scripts/build/termux_step_setup_toolchain.sh

@@ -80,7 +80,7 @@ termux_step_setup_toolchain() {
 	export GOOS=android
 	export CGO_ENABLED=1
 	export GO_LDFLAGS="-extldflags=-pie"
-	export CGO_LDFLAGS="$LDFLAGS"
+	export CGO_LDFLAGS="${LDFLAGS/-Wl,-z,relro,-z,now/}"
 	export CGO_CFLAGS="-I$TERMUX_PREFIX/include"
 
 	export ac_cv_func_getpwent=no