ath10k: remove unused len variables from wmi process rx functions
ath10k: remove unused len variables from wmi process rx functions

These len variables are not used anywhere.

Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@qca.qualcomm.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs