[docs] remove `linkquality` from `src/cli/README.md` (#7810)
[docs] remove `linkquality` from `src/cli/README.md` (#7810)


abtink/openthread,openthread/openthread,abtink/openthread,openthread/openthread,openthread/openthread,jwhui/openthread,jwhui/openthread,jwhui/openthread,openthread/openthread,abtink/openthread,abtink/openthread,jwhui/openthread,srickardti/openthread,srickardti/openthread,srickardti/openthread,srickardti/openthread