Remove KeyguardUpdateMonitor.getInstance().

This class is now provided via dependency injection.

This fixes the fingerprint sensor.

Bug: 140712902
Test: manual.
Change-Id: I37f55e946d67e6c7ad443a2110ad4955fdb52894
(cherry picked from commit cd84b099443113805fe36040147e022c63b1b21c)
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
index b964edf..720074b 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
@@ -217,8 +217,6 @@
         }
     }
 
-    private static KeyguardUpdateMonitor sInstance;
-
     private final Context mContext;
     private final boolean mIsPrimaryUser;
     HashMap<Integer, SimData> mSimDatas = new HashMap<Integer, SimData>();
@@ -1389,15 +1387,6 @@
         Trace.endSection();
     }
 
-
-    /** Provides access to the static instance. */
-    public static KeyguardUpdateMonitor getInstance(Context context) {
-        if (sInstance == null) {
-            sInstance = new KeyguardUpdateMonitor(context, Looper.getMainLooper());
-        }
-        return sInstance;
-    }
-
     protected void handleStartedGoingToSleep(int arg1) {
         checkIsHandlerThread();
         mLockIconPressed = false;