iwlwifi: remove unneeded struct declarations

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h

@@ -43,8 +43,6 @@
 #include "iwl-io.h"
 #include "iwl-op-mode.h"
 
-struct iwl_tx_queue;
-struct iwl_queue;
 struct iwl_host_cmd;
 
 /*This file includes the declaration that are internal to the