kconfig: localmodconfig: Remove unused $config

This is unused since commit cdfc47950a53 ("kconfig: search for a config
to base the local(mod|yes)config on").

Having unused $config is confusing because $config is used as a local
variable in various sub-routines.

Link: http://lkml.kernel.org/r/20191217041637.29558-1-masahiroy@kernel.org

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 file changed