Refactorized CheckStl::redundantCondition():
- Use symboldatabase
- Support erase() method
Refactorization: Replaced several Token::findmatch calls by symboldatabase usage
Refactorization: Removed whitespaces at the end of a token
Removed a redundant 'void'
Refactorized CheckStl::pushback():
- Use method from CheckNullPointer to find pointer dereference
- Replaced indendation counter by symboldatabase usage