Remove "Hotspot" key from settings search if not needed

- Remove "Hotspot" search key from TetherSettings

- Disable page search from WifiTetherSettings

Bug: 243876722
Test: manual test
make RunSettingsRoboTests ROBOTEST_FILTER=TetherSettingsTest
make RunSettingsRoboTests ROBOTEST_FILTER=WifiTetherSettingsTest

Change-Id: Ie04027600663321b35d8309c59084f630103e959

src/com/android/settings/wifi/tether/WifiTetherSettings.java

@@ -41,6 +41,7 @@ import com.android.settings.core.FeatureFlags;
 import com.android.settings.dashboard.RestrictedDashboardFragment;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.SettingsMainSwitchBar;
+import com.android.settings.wifi.WifiUtils;
 import com.android.settingslib.TetherUtil;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.search.SearchIndexable;
@@ -292,12 +293,12 @@ public class WifiTetherSettings extends RestrictedDashboardFragment
 
         @Override
         protected boolean isPageSearchEnabled(Context context) {
+            if (context == null || !WifiUtils.canShowWifiHotspot(context)) return false;
             return !FeatureFlagUtils.isEnabled(context, FeatureFlags.TETHER_ALL_IN_ONE);
         }
 
         @Override
-        public List<AbstractPreferenceController> createPreferenceControllers(
-                Context context) {
+        public List<AbstractPreferenceController> createPreferenceControllers(Context context) {
             return buildPreferenceControllers(context, null /* listener */);
         }
     }