qcacld-3.0: Remove typedef tSirNanEvent

Change I5565ef2eb72b3746e05cb8e16662985392bcc802 ("qcacld-3.0: Remove
unused wlan_hdd_cfg80211_nan_*() stubs") removed the last reference to
typedef tSirNanEvent. Since this typedef is obsolete, remove it.

Change-Id: I7b7ef8f0bde00a77d95e3e1451e6138b01061bd7
CRs-Fixed: 2411194
1 file changed