remove unused code

Author: cometkim

jscomp/frontend/ast_literal.ml

@@ -136,10 +136,6 @@ let type_int ?loc () =
   | Some loc ->
     Ast_helper.Typ.mk ~loc (Ptyp_constr ({txt = Lid.type_int; loc}, []))
 
-let type_int64 =
-  Ast_helper.Typ.mk
-    (Ptyp_constr ({txt = Lident "int64"; loc = Location.none}, []))
-
 let type_float =
   Ast_helper.Typ.mk
     (Ptyp_constr ({txt = Lident "float"; loc = Location.none}, []))

jscomp/frontend/ast_literal.mli

@@ -76,8 +76,6 @@ val type_bool : core_type_lit
 
 val type_int : core_type_lit
 
-val type_int64 : Parsetree.core_type
-
 val type_float : Parsetree.core_type
 
 val type_bigint : core_type_lit