cmd/go: disable broken test for code.google.com

For Go 1.7 we can remove all the code.google.com code
(except maybe the shutdown warning).

See #10193.

Change-Id: I4b8182eb66494f0bf373b40ca5da6ae4738342be
Reviewed-on: https://go-review.googlesource.com/18974
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

src/cmd/go/go_test.go

@@ -2255,6 +2255,7 @@ func TestGoGetInsecureCustomDomain(t *testing.T) {
 }
 
 func TestIssue10193(t *testing.T) {
+	t.Skip("depends on code.google.com")
 	testenv.MustHaveExternalNetwork(t)
 	if _, err := exec.LookPath("hg"); err != nil {
 		t.Skip("skipping because hg binary not found")

src/cmd/go/vcs_test.go

@@ -18,14 +18,14 @@ func TestRepoRootForImportPath(t *testing.T) {
 		path string
 		want *repoRoot
 	}{
-		{
+		/*{
 			"code.google.com/p/go",
 			&repoRoot{
 				vcs:  vcsHg,
 				repo: "https://code.google.com/p/go",
 			},
 		},
-		/*{
+		{
 		        "code.google.com/r/go",
 		        &repoRoot{
 		                vcs:  vcsHg,