MEDIUM: mworker: never block SIG{TERM,INT} during reload

The master should be able to be killed even if the reload is not
finished.
diff --git a/src/haproxy.c b/src/haproxy.c
index 69d42da..e2fd627 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -491,8 +491,6 @@
 	sigaddset(&set, SIGUSR1);
 	sigaddset(&set, SIGUSR2);
 	sigaddset(&set, SIGHUP);
-	sigaddset(&set, SIGINT);
-	sigaddset(&set, SIGTERM);
 	sigaddset(&set, SIGCHLD);
 	ha_sigmask(SIG_SETMASK, &set, NULL);
 }
@@ -505,8 +503,6 @@
 	sigaddset(&set, SIGUSR1);
 	sigaddset(&set, SIGUSR2);
 	sigaddset(&set, SIGHUP);
-	sigaddset(&set, SIGINT);
-	sigaddset(&set, SIGTERM);
 	sigaddset(&set, SIGCHLD);
 	ha_sigmask(SIG_UNBLOCK, &set, NULL);
 }