Remove redundant code

[T-Rizzle12]

The recent update #57 I refactored a bunch of the code and as a result, I left myself some time to update the code in some older projects of mine. Now that I have done this, I do believe it is the time to remove the redundant code. I have two main reasons for doing this.

1. There is no point in adding a bunch of unused functions to the player metatable, it's a waste of computer resources.
2. I noticed that some of the code wasn't properly updated to the newer codebase because it didn't create errors. "TLDR; A bunch of logic errors happen because the addon fallback onto the old code"

[T-Rizzle12]

I will work on this after #68. Since I want to push the bug fixes out first before conducting a major code cleanup.

[T-Rizzle12]

I have been working on this and let's just say it created a decent number of bugs. It looks like I had a lot of code still using the old stuff which causes the optimizations and fixes in the new stuff obsolete. I have been working on fixing this and so far, it's looking better and has fixed a few bugs that were created as a result. I hope to release this soon.

[T-Rizzle12]

I have removed most of the old code and I should have fixed all of the issues caused by this. Removing the old code has helped me fix some logical issues that affected this addon after the update to the new interface system.