xsnow: rebuild for gsl

- fix cross (regex did not match, and no need for qemu)

srcpkgs/xsnow/template

@@ -1,9 +1,8 @@
 # Template file for 'xsnow'
 pkgname=xsnow
 version=3.7.9
-revision=2
+revision=3
 build_style=gnu-configure
-build_helper=qemu
 hostmakedepends="gsl-devel pkg-config gettext tar"
 makedepends="gsl-devel gtk+3-devel libX11-devel libXext-devel libXpm-devel
  libXt-devel"
@@ -15,12 +14,6 @@ changelog="https://ratrabbit.nl/ratrabbit/xsnow/changelog/index.html"
 distfiles="https://ratrabbit.nl/downloads/xsnow/${pkgname}-${version}.tar.gz"
 checksum=0c4cd06e551f9b691dd08db5b14c0edc45549bf5879ce93b4fa88c828dfe1006
 
-pre_build() {
-	if [ "$CROSS_BUILD" ]; then
-		vsed -e "s:./xsnow -manpage:/usr/bin/qemu-${XBPS_TARGET_QEMU_MACHINE}-static &:" -i src/Makefile.am src/Makefile.in
-	fi
-}
-
 do_install() {
 	vbin src/xsnow
 	vman src/xsnow.6