CPP: Clean up Class, ClassDerivation and ClassTemplateSpecialization QLDoc.
CPP: Clean up Class, ClassDerivation and ClassTemplateSpecialization QLDoc.

github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql