Fixes for errorprone update

When updating errorprone from 2.23.0 -> 2.32.0, more issues are found.

Bug: 253827323
Flag: EXEMPT refactor
Test: m RUN_ERROR_PRONE=true javac-check
Change-Id: Iebb442f5e616861d1f2a2e2dc56a8ac72b18cb95

tests/robotests/src/com/android/settings/slices/SliceDataConverterTest.java

@@ -120,7 +120,6 @@ public class SliceDataConverterTest {
         assertThat(fakeSlice.getSummary()).isEqualTo(FAKE_SUMMARY);
         assertThat(fakeSlice.getScreenTitle()).isEqualTo(FAKE_SCREEN_TITLE);
         assertThat(fakeSlice.getKeywords()).isNull();
-        assertThat(fakeSlice.getIconResource()).isNotNull();
         assertThat(fakeSlice.getUri().toString())
                 .isEqualTo("content://com.android.settings.slices/action/key");
         assertThat(fakeSlice.getFragmentClassName()).isEqualTo(FAKE_FRAGMENT_CLASSNAME);