Revert r12430, r12432, r12433 (basic support for Latin1).

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 69b9d29333f23b69537b0dbf93f18e76ed57de17..462af590d2f02ab592062ffe5f943e2cf31fc812 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -204,23 +204,10 @@ Handle<String> Factory::NewStringFromAscii(Vector<const char> string,
 }
 
 Handle<String> Factory::NewStringFromUtf8(Vector<const char> string,
-                                          PretenureFlag pretenure,
-                                          String::AsciiHint ascii_hint) {
+                                          PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(
       isolate(),
-      isolate()->heap()->AllocateStringFromUtf8(
-          string, pretenure, ascii_hint),
-      String);
-}
-
-
-Handle<String> Factory::NewStringFromLatin1(Vector<const char> string,
-                                            PretenureFlag pretenure,
-                                            String::AsciiHint ascii_hint) {
-  CALL_HEAP_FUNCTION(
-      isolate(),
-      isolate()->heap()->AllocateStringFromLatin1(
-          string, pretenure, ascii_hint),
+      isolate()->heap()->AllocateStringFromUtf8(string, pretenure),
       String);
 }