Remove ConnectivityManager from EnterprisePrivacyFeatureProvider.

It is only used in GlobalHttpPreferenceController. Move it there.

Bug: 173331190
Test: atest SettingsRoboTests
Change-Id: I62c589679052b276927d057d3d5d084bbfb57626

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

@@ -84,11 +84,6 @@ public interface EnterprisePrivacyFeatureProvider {
      */
     boolean isAlwaysOnVpnSetInManagedProfile();
 
-    /**
-     * Returns whether the Device Owner set a recommended global HTTP proxy.
-     */
-    boolean isGlobalHttpProxySet();
-
     /**
      * Returns the number of failed login attempts that the Device Owner or Profile Owner allows
      * before the current user is wiped, or zero if no such limit is set.

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

@@ -146,11 +146,6 @@ public class EnterprisePrivacyFeatureProviderImpl implements EnterprisePrivacyFe
                 VpnUtils.isAlwaysOnVpnSet(mVm, managedProfileUserId);
     }
 
-    @Override
-    public boolean isGlobalHttpProxySet() {
-        return mCm.getGlobalProxy() != null;
-    }
-
     @Override
     public int getMaximumFailedPasswordsBeforeWipeInCurrentUser() {
         ComponentName owner = mDpm.getDeviceOwnerComponentOnCallingUser();

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

@@ -14,26 +14,25 @@
 package com.android.settings.enterprise;
 
 import android.content.Context;
+import android.net.ConnectivityManager;
 
 import com.android.settings.core.PreferenceControllerMixin;
-import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.core.AbstractPreferenceController;
 
 public class GlobalHttpProxyPreferenceController extends AbstractPreferenceController implements
         PreferenceControllerMixin {
 
     private static final String KEY_GLOBAL_HTTP_PROXY = "global_http_proxy";
-    private final EnterprisePrivacyFeatureProvider mFeatureProvider;
+    private final ConnectivityManager mCm;
 
     public GlobalHttpProxyPreferenceController(Context context) {
         super(context);
-        mFeatureProvider = FeatureFactory.getFactory(context)
-                .getEnterprisePrivacyFeatureProvider(context);
+        mCm = context.getSystemService(ConnectivityManager.class);
     }
 
     @Override
     public boolean isAvailable() {
-        return mFeatureProvider.isGlobalHttpProxySet();
+        return mCm.getGlobalProxy() != null;
     }
 
     @Override