If the ramping ringer adaptive volume is enabled then do not show

this setting. It will be injected from settings intelligence with
additional user options

Test: Build locally and validated
Change-Id: I6f79eea460e86d643d92c04e8ea126b99b9bed8b

tests/robotests/src/com/android/settings/testutils/shadow/ShadowDeviceConfig.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.testutils.shadow;
+
+import org.robolectric.annotation.Config;
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+
+@Implements(android.provider.DeviceConfig.class)
+public class ShadowDeviceConfig {
+
+    private static String configValue;
+
+    @Implementation
+    protected static boolean setProperty(
+        String namespace, String name, String value, boolean makeDefault) {
+        configValue = value;
+        return true;
+    }
+
+    @Implementation
+    protected static String getProperty(String ns, String key) { return configValue; }
+}
+
+