remove unused lexer rules

src/main/grammar/Aspect.flex

@@ -37,10 +37,6 @@ SingleLineComment   = "//"  [^\n\r]* (\n | \r | \r\n)
 FormalComment       = "/**" [^*]* [*]+([^*/][^*]*[*]+)*[/]
 MultiLineComment    = "/*"  [^*]+ [*]+([^*/][^*]*[*]+)*[/]
 
-
-NotBrace          = ( [^{}/]+ | [/][^{}/*] )+
-NotBracket        = ( [^\[\]/]+ | [/][^\[\]/*] )+
-
 // from jjt
 DecimalLiteral    = [1-9] [0-9]*
 HexLiteral        = 0 [xX] [0-9a-fA-F]+