qcacld-3.0: Remove typedef tpPESession

All references to typedef tpPESession have been converted to instead
to refer to the underlying struct, so remove the now obsolete typedef.

Change-Id: I58d80f42527a2edb20ca27a514600aa308e78fd8
CRs-Fixed: 2354302

core/mac/src/pe/include/lim_session.h

@@ -566,8 +566,6 @@ struct pe_session {
 	uint32_t dfs_regdomain;
 };
 
-typedef struct pe_session *tpPESession;
-
 struct session_params {
 	uint16_t session_id;
 };