LocationManagerService: Fix bug removing proximity alerts.

Alerts were not being removed from the mProximitiesEntered array.

Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/services/java/com/android/server/LocationManagerService.java b/services/java/com/android/server/LocationManagerService.java
index 4c3893c..024d8da 100644
--- a/services/java/com/android/server/LocationManagerService.java
+++ b/services/java/com/android/server/LocationManagerService.java
@@ -1204,12 +1204,10 @@
             // Remove expired alerts
             if (intentsToRemove != null) {
                 for (PendingIntent i : intentsToRemove) {
-                    mProximityAlerts.remove(i);
-                    ProximityAlert alert = mProximityAlerts.get(i);
+                    ProximityAlert alert = mProximityAlerts.remove(i);
                     mProximitiesEntered.remove(alert);
                 }
             }
-
         }
 
         // Note: this is called with the lock held.