location: Remove redundant mLocationTracking field from GpsLocationProvider

Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/location/java/com/android/internal/location/GpsLocationProvider.java b/location/java/com/android/internal/location/GpsLocationProvider.java
index 924641c..b15cf41 100644
--- a/location/java/com/android/internal/location/GpsLocationProvider.java
+++ b/location/java/com/android/internal/location/GpsLocationProvider.java
@@ -153,8 +153,6 @@
 
     // true if we are enabled
     private boolean mEnabled;
-    // true if we are enabled for location updates
-    private boolean mLocationTracking;
     
     // true if we have network connectivity
     private boolean mNetworkAvailable;
@@ -475,10 +473,7 @@
 
     @Override
     public void enableLocationTracking(boolean enable) {
-        if (mLocationTracking == enable) {
-            return;
-        }
-
+        super.enableLocationTracking(enable);
         if (enable) {
             mFixRequestTime = System.currentTimeMillis();
             mTTFF = 0;
@@ -487,12 +482,6 @@
         } else {
             stopNavigating();
         }
-        mLocationTracking = enable;
-    }
-
-    @Override
-    public boolean isLocationTracking() {
-        return mLocationTracking;
     }
 
     @Override