Deprecate unnecessary unlock method.

Author: brandonpage

libs/SalesforceSDK/src/com/salesforce/androidsdk/security/ScreenLockManager.java

@@ -87,8 +87,7 @@ public void storeMobilePolicy(UserAccount account, boolean screenLockRequired, i
             }
             globalPrefsEditor.apply();
 
-            // This is needed to block access to the app immediately on login
-            onAppForegrounded();
+            lock();
         }
     }
 
@@ -165,10 +164,11 @@ public void cleanUp(UserAccount account) {
 
     /**
      * Unlocks the app.
+     *
+     * @deprecated This method will be removed in 11.0.
      */
-    public void unlock() {
-        lastLockedTimestamp = 0;
-    }
+    @Deprecated
+    public void unlock() { }
 
     @VisibleForTesting
     protected boolean shouldLock() {

libs/SalesforceSDK/src/com/salesforce/androidsdk/ui/ScreenLockActivity.java

@@ -214,7 +214,6 @@ private void onAuthError(CharSequence errString) {
     private void finishSuccess() {
         resetUI();
         sendAccessibilityEvent(getString(R.string.sf__screen_lock_auth_success));
-        SalesforceSDKManager.getInstance().getScreenLockManager().unlock();
         finish();
     }
 

libs/test/SalesforceSDKTest/src/com/salesforce/androidsdk/security/ScreenLockManagerTest.java

@@ -89,7 +89,6 @@ public void testShouldNotLock() {
         Assert.assertFalse("Should not be locked without mobile policy set.", screenLockManager.shouldLock());
 
         screenLockManager.storeMobilePolicy(userAccount, false, 0);
-        screenLockManager.unlock();
         Assert.assertFalse("Should not be locked if shouldLock is false.", screenLockManager.shouldLock());
     }