This is the same as loader-kernel since the KERNEL_CMDLINE
parameter has been removed in [1] and not used at all anyway.
Remove it.
[1] f77db1a59036 ("ath79: cleanup image build code")
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Paul Spooren <mail@aparcar.org>