qcacld-3.0: Remove WMA_CHAN_START/END_RESP macros
Change I654e53fa2441e03723f150d973c124985c67f2b4 ("qcacld-3.0: Add new
params in ACS calc process") introduced macros WMA_CHAN_START_RESP and
WMA_CHAN_END_RESP, but did not add any code which uses them. Since
they are unused, remove them.
Change-Id: I7a5f20cb8e72c19f52d5a44afb3b480eaa84c06b
CRs-Fixed: 2375431