Remove redundant NOTICE symbolic link.

Now that http://r.android.com/r/1235427 and
http://r.android.com/r/1238719 are in, NOTICE symbolic links
are no longer needed.

Bug: 67772237
Bug: 68860345

Test: manually built and diffed before and after system image notices
Change-Id: Iefaf0e578c9990e442e9a88a335b2cbb3a4d4469
1 file changed