fix loop logic cruft in dynamic tls installation

commit 9d44b6460a inadvertently
contained leftover logic from a previous approach to the fallback
signaling loop. it had no adverse effect, since j was always nonzero
if the loop body was reachable, but it makes no sense to be there with
the current approach to avoid signaling self.

ldso/dynlink.c

@@ -1410,7 +1410,7 @@ static void install_new_tls(void)
 		memset(&sa.sa_mask, -1, sizeof sa.sa_mask);
 		__libc_sigaction(SIGSYNCCALL, &sa, 0);	
 		for (td=self->next; td!=self; td=td->next)
-			if (j) __syscall(SYS_tkill, td->tid, SIGSYNCCALL);
+			__syscall(SYS_tkill, td->tid, SIGSYNCCALL);
 		for (td=self->next; td!=self; td=td->next)
 			sem_wait(&barrier_sem);
 		sa.sa_handler = SIG_IGN;