Remove ENUM_C tokens.

Author: Maarten Staa

src/lexer.js

@@ -35,7 +35,6 @@ const Lexer = function (engine) {
   this.keywords = {
     __class__: this.tok.T_CLASS_C,
     __trait__: this.tok.T_TRAIT_C,
-    __enum__: this.tok.T_ENUM_C,
     __function__: this.tok.T_FUNC_C,
     __method__: this.tok.T_METHOD_C,
     __line__: this.tok.T_LINE,

src/parser.js

@@ -74,7 +74,6 @@ const Parser = function (lexer, ast) {
         this.tok.T_ENDSWITCH,
         this.tok.T_ENDWHILE,
         this.tok.T_ENUM,
-        this.tok.T_ENUM_C,
         this.tok.T_EVAL,
         this.tok.T_EXIT,
         this.tok.T_EXTENDS,
@@ -146,7 +145,6 @@ const Parser = function (lexer, ast) {
         "[",
         this.tok.T_CLASS_C,
         this.tok.T_TRAIT_C,
-        this.tok.T_ENUM_C,
         this.tok.T_FUNC_C,
         this.tok.T_METHOD_C,
         this.tok.T_LINE,