Remove unused NPAPI pieces.
Remove unused NPAPI pieces.

These files were used by the NPAPI plugin which is no longer supported.

This CL is the third piece which removes the LICENSE file which was checked in as a link.  Since links are not supported
we can not remove this file the normal way.

BUG= nacl1558
TEST= bots 


git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@4869 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client