remove unused SIGTIMER handler in timer_create

this was leftover from when the actual SIGEV_THREAD timer logic was in
the signal handler. commit 5b74eed3b301e2227385f3bf26d3bb7c2d822cf8
replaced that with use of sigwaitinfo, with the actual signal left
blocked, so the no-op signal handler was no longer serving any
purpose.

the signal disposition reset to SIG_DFL is still needed, however, in
case we inherited SIG_IGN from a foreign-libc process.

diff --git a/src/time/timer_create.c b/src/time/timer_create.c
index 455d49f..2b1ea17 100644 (file)
--- a/src/time/timer_create.c
+++ b/src/time/timer_create.c
@@ -32,15 +32,10 @@ static void cleanup_fromsig(void *p)
        longjmp(p, 1);
 }
 
-static void timer_handler(int sig, siginfo_t *si, void *ctx)
-{
-}
-
 static void install_handler()
 {
        struct sigaction sa = {
-               .sa_sigaction = timer_handler,
-               .sa_flags = SA_SIGINFO | SA_RESTART
+               .sa_handler = SIG_DFL,
        };
        __libc_sigaction(SIGTIMER, &sa, 0);
 }