undo CL 5375043 / ea8b178f9b73

Never lasts long.

««« original CL description
gc: add GOEXPERIMENT=reorg

This won't last long but may ease conversions.

R=ken2
CC=golang-dev
https://golang.org/cl/5375043
»»»

R=ken2, ken
CC=golang-dev
https://golang.org/cl/5370043

src/cmd/gc/go.h

@@ -852,7 +852,6 @@ EXTERN	int	typecheckok;
 EXTERN	int	compiling_runtime;
 
 EXTERN	int	rune32;
-EXTERN	int	reorg;
 
 /*
  *	y.tab.c

src/cmd/gc/lex.c

@@ -18,8 +18,6 @@ int windows;
 int yyprev;
 int yylast;
 
-Strlit *reorgpath(Strlit*);
-
 static void	lexinit(void);
 static void	lexinit1(void);
 static void	lexfini(void);
@@ -40,7 +38,6 @@ static struct {
 	int *val;
 } exper[] = {
 	{"rune32", &rune32},
-	{"reorg", &reorg},
 };
 
 static void
@@ -540,9 +537,6 @@ importfile(Val *f, int line)
 		yyerror("import path contains NUL");
 		errorexit();
 	}
-	
-	if(reorg)
-		f->u.sval = reorgpath(f->u.sval);
 
 	// The package name main is no longer reserved,
 	// but we reserve the import path "main" to identify
@@ -2121,47 +2115,3 @@ mkpackage(char* pkgname)
 		outfile = smprint("%s.%c", namebuf, thechar);
 	}
 }
-
-static struct {
-	char *old;
-	char *xnew;
-} reorgtab[] = {
-	{"asn1", "encoding/asn1"},
-	{"big", "math/big"},
-	{"cmath", "math/cmplx"},
-	{"csv", "encoding/csv"},
-	{"exec", "os/exec"},
-	{"exp/template/html", "html/template"},
-	{"gob", "encoding/gob"},
-	{"http", "net/http"},
-	{"http/cgi", "net/http/cgi"},
-	{"http/fcgi", "net/http/fcgi"},
-	{"http/httptest", "net/http/httptest"},
-	{"http/pprof", "net/http/pprof"},
-	{"json", "encoding/json"},
-	{"mail", "net/mail"},
-	{"rpc", "net/rpc"},
-	{"rpc/jsonrpc", "net/rpc/jsonrpc"},
-	{"scanner", "text/scanner"},
-	{"smtp", "net/smtp"},
-	{"syslog", "log/syslog"},
-	{"tabwriter", "text/tabwriter"},
-	{"template", "text/template"},
-	{"template/parse", "text/template/parse"},
-	{"rand", "math/rand"},
-	{"url", "net/url"},
-	{"utf16", "unicode/utf16"},
-	{"utf8", "unicode/utf8"},
-	{"xml", "encoding/xml"},
-};
-
-Strlit*
-reorgpath(Strlit *s)
-{
-	int i;
-
-	for(i=0; i < nelem(reorgtab); i++)
-		if(strcmp(s->s, reorgtab[i].old) == 0)
-			return strlit(reorgtab[i].xnew);
-	return s;
-}