Refrain flickering in AccessibilitySettings.

Bug: 3006118
Change-Id: I40249340242323e23bbd3008a8fb50589e939096
diff --git a/src/com/android/settings/AccessibilitySettings.java b/src/com/android/settings/AccessibilitySettings.java
index 321e956..5737065 100644
--- a/src/com/android/settings/AccessibilitySettings.java
+++ b/src/com/android/settings/AccessibilitySettings.java
@@ -88,11 +88,6 @@
             POWER_BUTTON_ENDS_CALL_CHECKBOX);
 
         addAccessibilitServicePreferences();
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
 
         final HashSet<String> enabled = new HashSet<String>();
         String settingValue = Settings.Secure.getString(getContentResolver(),