Remove redundant NOTICE symbolic link.

Now that http://aosp/1235427 and http://aosp/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: I86e19454aac8600cd7cbcc1444ebdf9280fe1817
1 file changed