This is really similar to: How to remove or disable a default keyboard layout? However, I am new here and have no ability to comment or make remarks towards this to voice further problems.
In OS X 10.9, I need to remove input sources in System Preferences > Language and Region > Keyboard Preferences > Input Source.
To be clear, I want these gone completely; if I were to click the add button then I want there to be nothing but the basic English layout available.
**Edit: The solution can be as dangerous as editing near-/root-level files in the OS as long as there's a possible solutions
If no possible solution can be found can anyone recommend third-party software or a way to lock system preferences?**