Commit 5a6f8d2bd9e3392569ed6f29ea4d7210652f929b ("kconfig: nuke
LKC_DIRECT_LINK cruft") removed all traces of lkc_defs.h from the tree.
Remove its entries in dontdiff and kconfig's .gitignore file too.
Signed-off-by: Paul Bolle
Signed-off-by: Michal Marek