go1.12-bootstrap: remove outdated musl workaround.

Since 091ab0b612, we have /lib64 as a
symlink to /usr/lib on 64-bit systems, so patching the ELF file to
change its interpreter is no longer necessary.

srcpkgs/go1.12-bootstrap/template

@@ -1,7 +1,7 @@
 # Template file for 'go1.12-bootstrap'
 pkgname=go1.12-bootstrap
 version=1.12.17
-revision=1
+revision=2
 archs="x86_64* i686* armv[67]l* aarch64* ppc64le*"
 wrksrc="go"
 short_desc="Go 1.12 (bootstrap compiler)"
@@ -15,7 +15,6 @@ lib32disabled=yes
 
 if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
 	depends+=" gcompat"
-	hostmakedepends+=" patchelf"
 fi
 
 case "$XBPS_TARGET_MACHINE" in
@@ -43,18 +42,6 @@ esac
 
 distfiles="https://dl.google.com/go/go${version}.linux-${_dist_arch}.tar.gz"
 
-post_build() {
-	[ "$XBPS_TARGET_LIBC" != "musl" ] && return 0
-
-	# we don't have lib64 compatibility path on musl 64-bit systems
-	# use patchelf to replace /lib64/<dynlinker> with /lib/<dynlinker>
-
-	local _interp=$(patchelf --print-interpreter ${wrksrc}/bin/go)
-
-	patchelf --set-interpreter ${_interp/lib64\//lib\/} ${wrksrc}/bin/go
-	patchelf --set-interpreter ${_interp/lib64\//lib\/} ${wrksrc}/bin/godoc
-}
-
 do_install() {
 	vmkdir usr/lib/go1.12
 	vcopy bin usr/lib/go1.12