sctp: remove completely unsed EMPTY state

SCTP does not SCTP_STATE_EMPTY and we can never be in
that state.  Remove useless code.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index deac13d..942b864 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h
@@ -187,15 +187,14 @@
 /* SCTP state defines for internal state machine */
 typedef enum {
 
-	SCTP_STATE_EMPTY		= 0,
-	SCTP_STATE_CLOSED		= 1,
-	SCTP_STATE_COOKIE_WAIT		= 2,
-	SCTP_STATE_COOKIE_ECHOED	= 3,
-	SCTP_STATE_ESTABLISHED		= 4,
-	SCTP_STATE_SHUTDOWN_PENDING	= 5,
-	SCTP_STATE_SHUTDOWN_SENT	= 6,
-	SCTP_STATE_SHUTDOWN_RECEIVED	= 7,
-	SCTP_STATE_SHUTDOWN_ACK_SENT	= 8,
+	SCTP_STATE_CLOSED		= 0,
+	SCTP_STATE_COOKIE_WAIT		= 1,
+	SCTP_STATE_COOKIE_ECHOED	= 2,
+	SCTP_STATE_ESTABLISHED		= 3,
+	SCTP_STATE_SHUTDOWN_PENDING	= 4,
+	SCTP_STATE_SHUTDOWN_SENT	= 5,
+	SCTP_STATE_SHUTDOWN_RECEIVED	= 6,
+	SCTP_STATE_SHUTDOWN_ACK_SENT	= 7,
 
 } sctp_state_t;