ChooseLockPattern: remove redundant setting of visible pattern default

Remove the code that set LOCK_PATTERN_VISIBLE to true the first time a
pattern was set, since LOCK_PATTERN_VISIBLE now defaults to true when
unset (ag/22912136).  The explicit defaulting to true was only needed
before because the low-level default value was wrong.

Bug: 270013005
Test: Set a pattern.  Verified that Keyguard uses visible pattern.
      Disabled the "Make pattern visible" option in Settings.  Verified
      that Keyguard doesn't use visible pattern.
Change-Id: I63f29c68f9a508fee0ee2f03f2cca33317fb8a32
Merged-In: I63f29c68f9a508fee0ee2f03f2cca33317fb8a32
(cherry picked from commit 6c3de30086d37947d11dca146354dca33a935755)
diff --git a/src/com/android/settings/password/ChooseLockPattern.java b/src/com/android/settings/password/ChooseLockPattern.java
index c0342d1..e1e7047 100644
--- a/src/com/android/settings/password/ChooseLockPattern.java
+++ b/src/com/android/settings/password/ChooseLockPattern.java
@@ -889,7 +889,6 @@
 
         private LockscreenCredential mChosenPattern;
         private LockscreenCredential mCurrentCredential;
-        private boolean mLockVirgin;
 
         public void start(LockPatternUtils utils, boolean credentialRequired,
                 boolean requestGatekeeperPassword, LockscreenCredential chosenPattern,
@@ -901,8 +900,6 @@
             mChosenPattern = chosenPattern;
             mUserId = userId;
 
-            mLockVirgin = !mUtils.isPatternEverChosen(mUserId);
-
             start();
         }
 
@@ -933,14 +930,5 @@
             }
             return Pair.create(success, result);
         }
-
-        @Override
-        protected void finish(Intent resultData) {
-            if (mLockVirgin) {
-                mUtils.setVisiblePatternEnabled(true, mUserId);
-            }
-
-            super.finish(resultData);
-        }
     }
 }