Revert "Skip changelog on opening thread"

This reverts commit c486ae0d97.

app/src/main/java/eu/faircode/email/ActivityView.java

@@ -1207,13 +1207,6 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
         if (first)
             new FragmentDialogFirst().show(getSupportFragmentManager(), "first");
         else if (show_changelog) {
-            // checkFirst: onCreate
-            // checkIntent: onResume
-            Intent intent = getIntent();
-            String action = (intent == null ? null : intent.getAction());
-            if (action != null && action.startsWith("thread"))
-                return;
-
             String last = prefs.getString("changelog", null);
             if (!Objects.equals(version, last) || BuildConfig.DEBUG) {
                 Bundle args = new Bundle();