cmd/5l: remove unused noop.c

LGTM=dave
R=rsc, dave
CC=golang-codereviews
https://golang.org/cl/116330043

src/cmd/5l/l.h

@@ -160,7 +160,6 @@ void	listinit(void);
 void	lput(int32 l);
 int	machoreloc1(Reloc *r, vlong sectoff);
 void	main(int argc, char *argv[]);
-void	noops(void);
 void	nopstat(char *f, Count *c);
 int32	rnd(int32 v, int32 r);
 void	wput(int32 l);

src/cmd/5l/noop.c

-// Inferno utils/5l/noop.c
-// http://code.google.com/p/inferno-os/source/browse/utils/5l/noop.c
-//
-//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
-//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
-//	Portions Copyright © 1997-1999 Vita Nuova Limited
-//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
-//	Portions Copyright © 2004,2006 Bruce Ellis
-//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
-//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
-//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-// Code transformations.
-
-#include	"l.h"
-#include	"../ld/lib.h"
-
-void
-noops(void)
-{
-	LSym *s;
-	
-	for(s = ctxt->textp; s != nil; s = s->next)
-		ctxt->arch->addstacksplit(ctxt, s);
-}