controlled_time: remove

We don't need it for testing at the moment, and if we do it'll have
to change to relative anyway now we're going to use time_mono().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

daemon/log.c

@@ -2,7 +2,6 @@
 #include "bitcoin/pubkey.h"
 #include "bitcoin/tx.h"
 #include "channel.h"
-#include "controlled_time.h"
 #include "htlc.h"
 #include "lightningd.h"
 #include "log.h"