Refactor cmd.list: remove keyfunc redefinition
Refactor cmd.list: remove keyfunc redefinition

No need to define 'keyfunc' before redefining it. If we somehow don't
define it then we may fail earlier than if it is set to 'None'. Earlier
seems to be better.

Test Plan:
$ ./meta/run_tests.sh

aevri/mel,aevri/mel