pwcli: list: remove useless variable assignment
pwcli: list: remove useless variable assignment

I don't see this variable value used anywhere after the assignment so just
remove the useless assignment.

Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@codeaurora.org>

kvalo/pwcli,kvalo/pwcli