Fix incorrect GMT offset in display

- android.icu.impl.TimeZoneAdapter doesn't fully implement
java.util.TimeZone, e.g. does not override getOffset(long date).
TimeZoneAdapter isn't a public API in ICU/Android. It shouldn't be
used in the first place

Bug: 77223510
Test: m RunSettingsRoboTests ROBOTEST_FILTER=com.android.settings.datetime.timezone
Change-Id: Ic0d7794326948796dcc5cc0b268ef634a74803c4

src/com/android/settings/datetime/timezone/TimeZoneInfo.java

@@ -167,7 +167,7 @@ public class TimeZoneInfo {
         public TimeZoneInfo format(TimeZone timeZone) {
             final String id = timeZone.getID();
             final TimeZoneNames timeZoneNames = mTimeZoneFormat.getTimeZoneNames();
-            final java.util.TimeZone javaTimeZone = android.icu.impl.TimeZoneAdapter.wrap(timeZone);
+            final java.util.TimeZone javaTimeZone = java.util.TimeZone.getTimeZone(id);
             final CharSequence gmtOffset = ZoneGetter.getGmtOffsetText(mTimeZoneFormat, mLocale,
                 javaTimeZone, mNow);
             return new TimeZoneInfo.Builder(timeZone)