Track deletion is handled by a service that shows a progress bar on the notification bar. Fixes #735.

src/main/AndroidManifest.xml

@@ -59,10 +59,6 @@ limitations under the License.
 
         <activity android:name=".AboutActivity" />
 
-        <activity
-            android:name=".TrackDeleteActivity"
-            android:theme="@style/TrackDeleteActivity" />
-
         <activity
             android:name=".HelpActivity"
             android:label="@string/menu_help" />
@@ -350,6 +346,13 @@ limitations under the License.
             android:name=".io.file.importer.ImportService"
             android:exported="false"
             android:permission="android.permission.BIND_JOB_SERVICE" />
+
+        <service
+            android:name=".services.TrackDeleteService"
+            android:enabled="true"
+            android:exported="false"
+            android:icon="@drawable/ic_logo_color_24dp"
+            android:label="@string/delete_service" />
     </application>
 
     <queries>