Remove custom tintable check.

Make a bunch keys private in tile and DashboardCategory
Bug: 77600770
Test: robotests
Change-Id: I4693e6bb71bd50cc664f578c7f8e25e67da20b67

src/com/android/settings/accounts/AccountDetailDashboardFragment.java

@@ -126,7 +126,7 @@ public class AccountDetailDashboardFragment extends DashboardFragment {
         if (mAccountType == null) {
             return false;
         }
-        final Bundle metadata = tile.metaData;
+        final Bundle metadata = tile.getMetaData();
         if (metadata == null) {
             return false;
         }