Remove hard dependency on ld.gold on aarch64. Fixes #22040

Author: solskogen

src/cmd/link/internal/ld/lib.go

@@ -1675,27 +1675,8 @@ func (ctxt *Link) hostlink() {
 altLinker = "lld"
 }
 
-if ctxt.Arch.InFamily(sys.ARM64) && buildcfg.GOOS == "linux" {
-// On ARM64, the GNU linker will fail with
-// -znocopyreloc if it thinks a COPY relocation is
-// required. Switch to gold.
-// https://sourceware.org/bugzilla/show_bug.cgi?id=19962
-// https://go.dev/issue/22040
-altLinker = "gold"
-
-// If gold is not installed, gcc will silently switch
-// back to ld.bfd. So we parse the version information
-// and provide a useful error if gold is missing.
-name, args := flagExtld[0], flagExtld[1:]
-args = append(args, "-fuse-ld=gold", "-Wl,--version")
-cmd := exec.Command(name, args...)
-if out, err := cmd.CombinedOutput(); err == nil {
-if !bytes.Contains(out, []byte("GNU gold")) {
-log.Fatalf("ARM64 external linker must be gold (issue #15696, 22040), but is not: %s", out)
-}
-}
-}
 }
+
 if ctxt.Arch.Family == sys.ARM64 && buildcfg.GOOS == "freebsd" {
 // Switch to ld.bfd on freebsd/arm64.
 altLinker = "bfd"