KeyChain: Fix certificate dialog needs twice Cancel to disappear.

The reason is that it returns to onResume() when
keyChainAliasResponse!= null in finish() of KeyChainActivity.
Then it will start Activity of CredentialStorage again as well as
the certificate dialog appears. So it needs twice "Cancel" button
to disappear.

The change is deleting return for finish() in KeyChainActivity.

CRs-Fixed: 619722

Change-Id: Ib38741294e71b8be21d3cdff18e1c10d3cc91f4b
diff --git a/src/com/android/keychain/KeyChainActivity.java b/src/com/android/keychain/KeyChainActivity.java
index 3859f05..994fb12 100644
--- a/src/com/android/keychain/KeyChainActivity.java
+++ b/src/com/android/keychain/KeyChainActivity.java
@@ -387,7 +387,6 @@
                         getIntent().getIBinderExtra(KeyChain.EXTRA_RESPONSE));
         if (keyChainAliasResponse != null) {
             new ResponseSender(keyChainAliasResponse, alias).execute();
-            return;
         }
         finish();
     }