dashboard: remove mobile misc-compile trybots

I guess they never worked.

Updates golang/go#25963

Change-Id: I1409a704670032410c3c6b87cbbb876fc96dfb22
Reviewed-on: https://go-review.googlesource.com/119856
Reviewed-by: Filippo Valsorda <filippo@golang.org>
diff --git a/dashboard/builders.go b/dashboard/builders.go
index 942d37d..1760c88 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -988,7 +988,6 @@
 		})
 	}
 	addMiscCompile("", "^(linux-arm64|linux-s390x|solaris-amd64|darwin-386)$") // 4 ports
-	addMiscCompile("-mobile", "(^android|darwin-arm64)")                       // 5 ports
 	addMiscCompile("-nacl", "^nacl")                                           // 3
 	addMiscCompile("-mips", "^linux-mips")                                     // 4
 	addMiscCompile("-ppc", "^linux-ppc64")                                     // 2
@@ -996,6 +995,8 @@
 	addMiscCompile("-freebsd", "^freebsd-")                                    // 3
 	addMiscCompile("-netbsd", "^netbsd-")                                      // 3
 	addMiscCompile("-openbsd", "^openbsd-")                                    // 3
+	// TODO: Issue 25963, get the misc-compile trybots for mobile working, and then:
+	// addMiscCompile("-mobile", "(^android|darwin-arm64)")                       // 5 ports
 
 	addBuilder(BuildConfig{
 		Name:      "linux-amd64-nocgo",