Remove DynamicAvailabilityPreferenceController.

- This class is over complex to use, and get in the way of show/hide
  pref when availability change.
- The function from DynamicAvailabilityPreferenceController can be done
  with PreferenceCategoryController.

Bug: 68956750
Bug: 32953042
Test: robotests
Change-Id: Ia7b7e214c072b8c77f5de3d959fdb1dc79217f76

src/com/android/settings/enterprise/CaCertsCurrentUserPreferenceController.java

@@ -20,16 +20,13 @@ import android.support.v7.preference.Preference;
 
 import com.android.settings.R;
 
-import com.android.settingslib.core.lifecycle.Lifecycle;
-
 public class CaCertsCurrentUserPreferenceController extends CaCertsPreferenceControllerBase {
 
     @VisibleForTesting
     static final String CA_CERTS_CURRENT_USER = "ca_certs_current_user";
 
-    public CaCertsCurrentUserPreferenceController(Context context,
-            Lifecycle lifecycle) {
-        super(context, lifecycle);
+    public CaCertsCurrentUserPreferenceController(Context context) {
+        super(context);
     }
 
     @Override