remove Lexing/Parsing/Parser completely

Author: cometkim

jscomp/core/lam_dispatch_primitive.ml

@@ -209,8 +209,6 @@ let translate loc (prim_name : string) (args : J.expression list) : J.expression
   | "?sys_getcwd" (* check browser or nodejs *)
   | "?sys_is_directory" | "?sys_exit" ->
       call Js_runtime_modules.sys
-  | "?lex_engine" | "?new_lex_engine" -> call Js_runtime_modules.lexer
-  | "?parse_engine" | "?set_parser_trace" -> call Js_runtime_modules.parser
   | "?make_float_vect"
   | "?floatarray_create" (* TODO: compile float array into TypedArray*) ->
       E.runtime_call Js_runtime_modules.array "make_float" args

jscomp/ext/js_runtime_modules.ml

@@ -28,10 +28,6 @@ let io = "Caml_io"
 
 let sys = "Caml_sys"
 
-let lexer = "Caml_lexer"
-
-let parser = "Caml_parser"
-
 let obj_runtime = "Caml_obj"
 
 let array = "Caml_array"