Refactoring on the operators parsers (2/2)

This is the first step towards remove the memory leaks in the parser

src/operators/fuzzy_hash.cc

@@ -31,12 +31,5 @@ bool FuzzyHash::evaluate(Transaction *transaction, const std::string &str) {
     return true;
 }
 
-FuzzyHash::FuzzyHash(std::string op, std::string param,
-    bool negation)
-    : Operator() {
-    this->m_op = op;
-    this->m_param = param;
-}
-
 }  // namespace operators
 }  // namespace modsecurity