svn commit: r309549 - head/sys/arm64/arm64

[Andrew Turner]

Author: andrew
Date: Mon Dec  5 11:40:54 2016
New Revision: 309549
URL: https://svnweb.freebsd.org/changeset/base/309549

Log:
  Remove an unneeded header. It was used when we had an arm64 specific GIC
  driver, however with INTRNG this has been merged into a common arm driver.
  
  Obtained from:	ABT Systems Ltd
  Sponsored by:	The FreeBSD Foundation

Deleted:
  head/sys/arm64/arm64/gic.h