Bump minimum MacOS version to 10.13

We've removed all of our buildbots running 10.10, and Android Studio
requires 10.14+, so our oldest users are now the 10.13 buildbots.

Bug: 191879468
Change-Id: Ie9fdb59f12bb672c5f2448cb558f54a2e10039fb
diff --git a/cc/config/x86_darwin_host.go b/cc/config/x86_darwin_host.go
index 23fe1ab..0bb1a81 100644
--- a/cc/config/x86_darwin_host.go
+++ b/cc/config/x86_darwin_host.go
@@ -53,14 +53,12 @@
 	}
 
 	darwinSupportedSdkVersions = []string{
-		"10.10",
-		"10.11",
-		"10.12",
 		"10.13",
 		"10.14",
 		"10.15",
 		"11.0",
 		"11.1",
+		"11.3",
 	}
 
 	darwinAvailableLibraries = append(
@@ -89,7 +87,7 @@
 	pctx.VariableFunc("macSdkRoot", func(ctx android.PackageVarContext) string {
 		return getMacTools(ctx).sdkRoot
 	})
-	pctx.StaticVariable("macMinVersion", "10.10")
+	pctx.StaticVariable("macMinVersion", "10.13")
 	pctx.VariableFunc("MacArPath", func(ctx android.PackageVarContext) string {
 		return getMacTools(ctx).arPath
 	})