slirp: removed unused code

Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NSamuel Thibault <samuel.thibault@ens-lyon.org>

slirp/ip.h

@@ -233,17 +233,4 @@ struct	ipasfrag {
 #define ipf_next     ipf_link.next
 #define ipf_prev     ipf_link.prev
 
-/*
- * Structure stored in mbuf in inpcb.ip_options
- * and passed to ip_output when ip options are in use.
- * The actual length of the options (including ipopt_dst)
- * is in m_len.
- */
-#define MAX_IPOPTLEN	40
-
-struct ipoption {
-	struct	in_addr ipopt_dst;	/* first-hop dst if source routed */
-	int8_t	ipopt_list[MAX_IPOPTLEN];	/* options proper */
-} QEMU_PACKED;
-
 #endif