qcacld-3.0: Remove wlan_hdd_validate_session_id()
Previously I06f948d8de4b8a98bfe66e18ae38b1040204fdb4 ("qcacld-3.0:
Replace wlan_hdd_validate_session_id()") replaced all instances of
wlan_hdd_validate_session_id() with wlan_hdd_validate_vdev_id().
However this change left behind the wlan_hdd_validate_session_id()
macro. Subsequently I7584fb5db036d1643bd7d56076d30a0c75008a98
("qcacld-3.0: Handle OWE info update from hostapd") added a new
instance of invoking wlan_hdd_validate_session_id(). So rename the new
instance, and remove the macro to prevent the addition of any future
instances.
Change-Id: I132a749d2f694b44296a44f2aa31e9aec5f0878f
CRs-Fixed: 2408166