detect/cip: remove dead code

src/detect-cipservice.h

@@ -26,8 +26,6 @@
 
 #include "app-layer-enip-common.h"
 
-#define ENIP_PORT 44818 //standard EtherNet/IP port
-
 /**
  * CIP Service rule data structure
  */
@@ -72,20 +70,4 @@ typedef struct CIPServiceData_
     struct CIPServiceData* next;
 } CIPServiceData;
 
-/**
- * ENIP data structure
- */
-typedef struct ENIPData_
-{
-    int direction;
-    ENIPEncapHdr header; //encapsulation header
-    ENIPEncapDataHdr encap_data_header; //encapsulation data header
-    ENIPEncapAddresItem encap_addr_item; //encapsulated address item
-    ENIPEncapDataItem encap_data_item; //encapsulated data item
-
-    CIPServiceData* service_head; //head of cip service data list
-    CIPServiceData* service_tail; //tail of cip service data list
-
-} ENIPData;
-
 #endif	/* _DETECT_CIPSERVICE_H */