Don't write bogus built targets.

Bug: 239638693

Test: m droid dist
Change-Id: I1a5bc587afc2ac4835bed929d79b4bf28d7d6a6d

android/license_metadata.go

@@ -15,7 +15,6 @@
 package android
 
 import (
-	"fmt"
 	"sort"
 	"strings"
 
@@ -144,8 +143,6 @@ func buildLicenseMetadata(ctx ModuleContext, licenseMetadataFile WritablePath) {
 	if len(outputFiles) > 0 {
 		args = append(args,
 			JoinWithPrefix(proptools.NinjaAndShellEscapeListIncludingSpaces(outputFiles.Strings()), "-t "))
-	} else {
-		args = append(args, fmt.Sprintf("-t //%s:%s", ctx.ModuleDir(), ctx.ModuleName()))
 	}
 
 	// Installed files