qcacld-3.0: Remove tHalHandle definition

All references to the legacy tHalHandle have been removed, so remove
the definition itself.

Change-Id: I41e93fc7dd1bc7cb5d06300c607854b7c691f3c1
CRs-Fixed: 2348558

core/mac/inc/sir_types.h

@@ -49,9 +49,6 @@
 struct opaque_mac_handle;
 typedef struct opaque_mac_handle *mac_handle_t;
 
-/* retain legacy name until all instances have been replaced */
-typedef mac_handle_t tHalHandle;
-
 /**
  * typedef hdd_handle_t - HDD Handle
  *