vendorcode/amd/agesa/f*/cpcar.in: Remove non-GCC CAR implementation

We don't actually use nor support these as our implementation
makes use of gcccar.inc. They maybe useful as a reference for
history so lets keep them in version history.

Change-Id: I388251dead449dde14283e57db39c37982d947b2
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7596
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>