gsm_data_shared.h: Remove unused sacch_deact member field

Change-Id: I806b957b7f6fbbb1206d29ceeccd401c98c26990
diff --git a/include/osmocom/bsc/gsm_data_shared.h b/include/osmocom/bsc/gsm_data_shared.h
index 504b42a..7a650fe 100644
--- a/include/osmocom/bsc/gsm_data_shared.h
+++ b/include/osmocom/bsc/gsm_data_shared.h
@@ -226,7 +226,6 @@
 
 	/* Established data link layer services */
 	uint8_t sapis[8];
-	int sacch_deact;
 
 	struct {
 		uint32_t bound_ip;