greybus: connection: remove unused time-stamp defines

Remove unused time-stamp defines, that were left in when the time-stamp
fifo was removed.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/connection.c

@@ -11,10 +11,6 @@
 
 #include "greybus.h"
 
-#define GB_CONNECTION_TS_KFIFO_ELEMENTS	2
-#define GB_CONNECTION_TS_KFIFO_LEN \
-	(GB_CONNECTION_TS_KFIFO_ELEMENTS * sizeof(struct timeval))
-
 static DEFINE_SPINLOCK(gb_connections_lock);
 
 /* This is only used at initialization time; no locking is required. */