Clean the slice in onUnpinned rather than onBinded.

Change-Id: Idda7cbedb0ce7b0ec83fc2f11a2505634d2b465c
Bug: 249101421

src/com/android/settings/slices/SettingsSliceProvider.java

@@ -187,6 +187,7 @@ public class SettingsSliceProvider extends SliceProvider {
 
     @Override
     public void onSliceUnpinned(Uri sliceUri) {
+        mSliceWeakDataCache.remove(sliceUri);
         final Context context = getContext();
         if (!VolumeSliceHelper.unregisterUri(context, sliceUri)) {
             SliceBroadcastRelay.unregisterReceivers(context, sliceUri);
@@ -258,11 +259,6 @@ public class SettingsSliceProvider extends SliceProvider {
                 loadSliceInBackground(sliceUri);
                 return getSliceStub(sliceUri);
             }
-
-            // Remove the SliceData from the cache after it has been used to prevent a memory-leak.
-            if (!getPinnedSlices().contains(sliceUri)) {
-                mSliceWeakDataCache.remove(sliceUri);
-            }
             return SliceBuilderUtils.buildSlice(getContext(), cachedSliceData);
         } finally {
             StrictMode.setThreadPolicy(oldPolicy);