Revert 175069

> Add "scrypt" to third_party for use in generating secure hash of user password that can later be used for off-line authentication in the case when on-line authentication is not available.
> 
> The planned use for this is profile-locking where unlocking has to be possible even when not connected to a network.
> 
> BUG=
> 
> 
> Review URL: https://chromiumcodereview.appspot.com/11637016

TBR=bcwhite@chromium.org
Review URL: https://codereview.chromium.org/11776013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@175256 0039d316-1c4b-4281-b951-d872f2087c98

.gitignore

@@ -230,7 +230,6 @@ v8.log
 /third_party/pywebsocket/src
 /third_party/safe_browsing/testing
 /third_party/scons-2.0.1
-/third_party/scrypt
 /third_party/sfntly
 /third_party/skia
 /third_party/smhasher