Consider removing warnings.filterwarnings("ignore") if it is not needed

[tomvothecoder]

In this PR, we replace np.filterwarnings.warnings("ignore") with filterwarnings.warnings("ignore") because numpy deprecated their wrapper for filterwarnings.

We should check the following:

1. Figure out why np.filterwarnings.warnings("ignore") was originally implemented
   • For example, was it used to filter out warnings such as divide by zero. If so, why would we want to filter these warnings?
2. Check if filterwarnings.warnings("ignore") is still needed -- it might be filtering out all warnings and not just numpy warnings
   • Remove this line and do a test run
     • If no warnings are produced, remove this line
     • If warnings are produced, note the exact packages and modules. Determine if we need to ignore specific warnings or not.