Issues with lispyville-delete-char-or-splice.

When using the `x` in certain situtaions I get some strange behaviour. The letters above denote the cursor position.
```
;;     AB     C
((hello)(world))
```
I end up with `((world))` when pressing `x` in any of those cases.
When adding a space in between `(hello)` and `(world)` everything works as expected.