cmd: bootflow: remove dead code in do_bootflow_cmdline()

Checking argc < 3 twice is redundant.

Addresses-Coverity-ID: 477198 Logically dead code
Fixes: 921f63e57238 ("bootflow: Allow setting a cmdline arg with no value")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
1 file changed