Revert submission

Reason for revert: This causes a boot issue on Taimen (b/144480969). It wasn't caught by TreeHugger due to Taimen tests being disabled due to a different lab outage (b/144350336).

Change-Id: I490dc6c933c08c3c83b962786df11bd2da66b28a

src/com/android/settings/system/SystemUpdatePreferenceController.java

@@ -89,7 +89,7 @@ public class SystemUpdatePreferenceController extends BasePreferenceController {
     @Override
     public CharSequence getSummary() {
         CharSequence summary = mContext.getString(R.string.android_version_summary,
-                Build.VERSION.RELEASE_OR_CODENAME);
+                Build.VERSION.RELEASE);
         final FutureTask<Bundle> bundleFutureTask = new FutureTask<>(
                 // Put the API call in a future to avoid StrictMode violation.
                 () -> mUpdateManager.retrieveSystemUpdateInfo());