chromium: Drop adservices from optional_uses_libs

* It's only visible to //vendor:__subpackages__

Change-Id: Ic8a00194f6b682e4922c24865ddccbb7fe744d7f
diff --git a/Android.bp b/Android.bp
index 28d2904..4f0e6b6 100644
--- a/Android.bp
+++ b/Android.bp
@@ -76,7 +76,6 @@
     required: ["TrichromeLibrary6432"],
     optional_uses_libs: [
         "androidx.window.extensions",
-        "android.ext.adservices",
     ],
 }
 
@@ -118,6 +117,5 @@
     required: ["TrichromeLibrary6432"],
     optional_uses_libs: [
         "androidx.window.extensions",
-        "android.ext.adservices",
     ],
 }