PR: Remove a do-nothing statement in soi._handle_first_parameter

[edreamleo]

The then-clause of an if statement was pass.

[lieryan]

Hi @edreamleo, thanks for fixing this.

I wonder what was the intent for this empty block was.

If I had to guess, this was probably supposed to be an if--elif chain and the empty block was supposed to be an early return from the method.

Not quite sure whether the lack of early return would have caused any issues, but if it's been a decade without an issue, removing it probably would be fine.