qcacmn: Remove unused and duplicate members from vdev_start_params

Remove the unused fields from WMI unified vdev_start_params structure.
The channel information duplicated in vdev_start_params and
it sub structure channel is removed and all implementations
can use the channel sub structure directly.

Change-Id: I47cf4c4223111b6f564ec8336dbfcda4592e8e0c
CRs-Fixed: 2350505
3 files changed