lakitu: Remove broken link 99-systctl.conf

ChromeOS depends on 00-sysctl.conf. Especially for
our case, 00-sysctl.conf is shared by all the boards.
99-sysctl.conf is broken, and even it does not, it does
not achive desired behavior since it will override 00-sysctl.conf.
We should remove it from project-lakitu/project-lakitu-private
and leave the change to the final board if the board wants to
override settings specified in 00-sysctl.conf

BUG=b/171745462
TEST=Presubmit/sponge2/030e4980-ac8b-4e4a-8aca-0c62eedbc58e
RELEASE_NOTE=None

Change-Id: If8bcaaea67d9a402b942791c6d5f821c65f3c8df
2 files changed