two redundant lines of code that may have caused a tiny memory leak

Since a reference is created pointing to `type`, I am led to believe that `type` is never deallocated from memory, so I believe these two lines of code cause a tiny memory leak. I might be wrong.
The node->get(...) function is used within the AchievementInfo class, so `type` is redundant.
I have removed these redundant lines of code.

This is my first time doing git collaboration and I'm still learning STK's codebase, so I apologize if I did something wrong here.