Update 4.8.1 to 4.8.3.

My previous drop was the wrong version. The platform mingw is
currently using 4.8.3, not 4.8.1 (not sure how I got that wrong).

From ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.3/gcc-4.8.3.tar.bz2.

Bug: http://b/26523949
Change-Id: Id85f1bdcbbaf78c7d0b5a69e74c798a08f341c35

1 files changed, 0 insertions, 64 deletions

diff --git a/gcc-4.8.1/libgo/runtime/signal_unix.c b/gcc-4.8.1/libgo/runtime/signal_unix.c
deleted file mode 100644
index 3b8f43937..000000000
--- a/gcc-4.8.1/libgo/runtime/signal_unix.c
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2012 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin freebsd linux openbsd netbsd
-
-#include <sys/time.h>
-
-#include "runtime.h"
-#include "defs.h"
-
-extern SigTab runtime_sigtab[];
-
-void
-runtime_initsig(void)
-{
-	int32 i;
-	SigTab *t;
-
-	// First call: basic setup.
-	for(i = 0; runtime_sigtab[i].sig != -1; i++) {
-		t = &runtime_sigtab[i];
-		if((t->flags == 0) || (t->flags & SigDefault))
-			continue;
-		runtime_setsig(i, false, true);
-	}
-}
-
-void
-runtime_sigenable(uint32 sig)
-{
-	int32 i;
-	SigTab *t;
-
-	for(i = 0; runtime_sigtab[i].sig != -1; i++) {
-		// ~0 means all signals.
-		if(~sig == 0 || runtime_sigtab[i].sig == (int32)sig) {
-			t = &runtime_sigtab[i];
-			if(t->flags & SigDefault) {
-				runtime_setsig(i, false, true);
-				t->flags &= ~SigDefault;  // make this idempotent
-			}
-		}
-	}
-}
-
-void
-runtime_resetcpuprofiler(int32 hz)
-{
-	struct itimerval it;
-
-	runtime_memclr((byte*)&it, sizeof it);
-	if(hz == 0) {
-		runtime_setitimer(ITIMER_PROF, &it, nil);
-		runtime_setprof(false);
-	} else {
-		it.it_interval.tv_sec = 0;
-		it.it_interval.tv_usec = 1000000 / hz;
-		it.it_value = it.it_interval;
-		runtime_setitimer(ITIMER_PROF, &it, nil);
-		runtime_setprof(true);
-	}
-	runtime_m()->profilehz = hz;
-}