Rule: isMarker is no longer necessary

headers/modsecurity/rule.h

@@ -110,9 +110,6 @@ class Rule {
         return "<<no file>>:" + std::to_string(m_lineNumber);
     }
 
-
-    virtual bool isMarker() { return false; }
-
  private:
     std::shared_ptr<std::string> m_fileName;
     int m_lineNumber;

headers/modsecurity/rule_marker.h

@@ -68,12 +68,10 @@ class RuleMarker : public Rule {
     };
 
 
-    std::shared_ptr<std::string> getName() {
+    std::shared_ptr<std::string> getName() const {
         return m_name;
     }
 
-    bool isMarker() override { return true; }
-
  private:
     std::shared_ptr<std::string> m_name;
 };