prune dead SYNC_FAIL_ALL define

src/main.c

@@ -1045,8 +1045,6 @@ done_sync( int sts, void *aux )
 			if (sts & SYNC_BAD(S))
 				mvars->state[S] = ST_CLOSED;
 			mvars->skip = 1;
-		} else if (sts & SYNC_FAIL_ALL) {
-			mvars->skip = 1;
 		}
 	}
 	sync_chans( mvars, E_SYNC );

src/sync.h

@@ -71,7 +71,6 @@ extern const char *str_ms[2], *str_hl[2];
 
 #define SYNC_OK       0 /* assumed to be 0 */
 #define SYNC_FAIL     1
-#define SYNC_FAIL_ALL 2
 #define SYNC_BAD(ms)  (4<<(ms))
 #define SYNC_NOGOOD   16 /* internal */
 #define SYNC_CANCELED 32 /* internal */