Remove old preparser option and behavior from the parser.

Review URL: http://codereview.chromium.org/4244003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5752 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/compiler.cc

@@ -279,7 +279,6 @@ Handle<SharedFunctionInfo> Compiler::Compile(Handle<String> source,
     // in that case too.
     ScriptDataImpl* pre_data = input_pre_data;
     if (pre_data == NULL
-        && FLAG_lazy
         && source_length >= FLAG_min_preparse_length) {
       pre_data = ParserApi::PartialPreParse(source, NULL, extension);
     }

src/scanner.h

@@ -262,7 +262,6 @@ class KeywordMatcher {
 };
 
 
-enum ParserMode { PARSE, PREPARSE };
 enum ParserLanguage { JAVASCRIPT, JSON };