Cannot disable " autofix in latex mode

### What did you expect to happen?

I wanted to disable the smartparens latex feature whereby typing a double quote `"` results in inserting ` `` ''`. I found a related issue entry [here](https://github.com/hlissner/doom-emacs/issues/1688). Applied the recommended fix:
```
(map! :map tex-mode-map
:i "\"" 'self-insert-command)

(after! smartparens-latex
(let ((modes '(tex-mode plain-tex-mode latex-mode LaTeX-mode)))
(sp-with-modes modes
(sp-local-pair "``" "''" :actions :rem))))
```

### What actually happened?

The latex mode is completely broken and I keep having this error message:
```
Pair `` was never defined, please specify closing delimiter in instead of passing ‘nil’
```

### Describe your attempts to resolve the issue

_No response_

### Steps to reproduce

Add the snippet below to doom's config and open a latex file.
```
(map! :map tex-mode-map
:i "\"" 'self-insert-command)

(after! smartparens-latex
(let ((modes '(tex-mode plain-tex-mode latex-mode LaTeX-mode)))
(sp-with-modes modes
(sp-local-pair "``" "''" :actions :rem))))
```

### System Information

https://pastebin.com/refjLW9x