Remove dead code

* defs.h (tv_tv): Remove.
* net.c (sys_xsetsockaddr): Remove commented out dead code.
* process.c (setarg, sys_execv, sys_execve, struct_user_offsets):
Likewise.
* signal.c (sys_sigsuspend): Likewise.
* strace.c (reaper, trace): Likewise.
* stream.c (internal_stream_ioctl): Likewise.
* syscall.c (trace_syscall): Likewise.
* term.c (term_ioctl): Likewise.
* util.c (tv_tv, umoven, uload, getpc, fixvfork, setbpt, clearbpt):
Likewise.
diff --git a/term.c b/term.c
index 3c24250..23d2317 100644
--- a/term.c
+++ b/term.c
@@ -178,10 +178,7 @@
 };
 
 
-int
-term_ioctl(tcp, code, arg)
-struct tcb *tcp;
-long code, arg;
+int term_ioctl(struct tcb *tcp, long code, long arg)
 {
 	struct termios tios;
 #ifndef FREEBSD
@@ -417,14 +414,6 @@
 		printnum_int(tcp, arg, "%d");
 		return 1;
 
-#if 0
-	/* ioctls with an indirect parameter displayed in hex */
-
-		tprintf(", ");
-		printnum(tcp, arg, "%#x");
-		return 1;
-#endif
-
 	/* ioctls with an indirect parameter displayed as a char */
 
 #ifdef TIOCSTI