[Flag cleanup] remove separate_accessibility_vibration_settings_fragments

This bug fix associated with this flag is low risk. The flag has been
soaked in the Trunkfood full for 30 days and tested by 1000+ users.
Based on the flag cleanup policy, we can clean up the flag.

Bug: 289967175
Flag: EXEMPT flag cleanup
Test: Run the Settings app and can still see the vibration & haptics
screen

Change-Id: I39890a33f04b53565461ae2c6c4e63b94f205e6d

src/com/android/settings/accessibility/VibrationIntensitySettingsFragment.java

@@ -30,7 +30,6 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.settings.R;
 import com.android.settings.dashboard.DashboardFragment;
-import com.android.settings.flags.Flags;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.search.SearchIndexable;
 
@@ -65,11 +64,7 @@ public class VibrationIntensitySettingsFragment extends DashboardFragment {
         final int supportedIntensityLevels = context.getResources().getInteger(
                 R.integer.config_vibration_supported_intensity_levels);
         final boolean hasVibrator = context.getSystemService(Vibrator.class).hasVibrator();
-        if (Flags.separateAccessibilityVibrationSettingsFragments()) {
-            return hasVibrator && supportedIntensityLevels > 1;
-        } else {
-            return false;
-        }
+        return hasVibrator && supportedIntensityLevels > 1;
     }
 
     @Override