cmd/link/internal/ld,misc/cgo/testcshared: don't -fuse-ld=gold on Android

The NDK is switching to ldd, and will stop including the gold linker.

Change-Id: If74168017c9874134b34010906ab1d94001528b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/206840
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

misc/cgo/testcshared/cshared_test.go

@@ -103,7 +103,7 @@ func testMain(m *testing.M) int {
 		// TODO(crawshaw): can we do better?
 		cc = append(cc, []string{"-framework", "CoreFoundation", "-framework", "Foundation"}...)
 	case "android":
-		cc = append(cc, "-pie", "-fuse-ld=gold")
+		cc = append(cc, "-pie")
 	}
 	libgodir := GOOS + "_" + GOARCH
 	switch GOOS {

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

@@ -1313,7 +1313,7 @@ func (ctxt *Link) hostlink() {
 		// from the beginning of the section (like sym.STYPE).
 		argv = append(argv, "-Wl,-znocopyreloc")
 
-		if ctxt.Arch.InFamily(sys.ARM, sys.ARM64) && (objabi.GOOS == "linux" || objabi.GOOS == "android") {
+		if ctxt.Arch.InFamily(sys.ARM, sys.ARM64) && objabi.GOOS == "linux" {
 			// On ARM, the GNU linker will generate COPY relocations
 			// even with -znocopyreloc set.
 			// https://sourceware.org/bugzilla/show_bug.cgi?id=19962