Latex Configuration Leads to Problems with Quotes

[dstrohmaier]

Problem

As documented in this commit, Prelude lets the smartparens package handle smart quotes in latex:
b774a24

This is not a good solution, because smartparens has a bug with regard to these quotes that has not been fixed and has been documented here:
Fuco1/smartparens#772

Possible Fix

The github issue also provides a possible fix for the Prelude situation. Insert this fix:

(sp-with-modes '(tex-mode
                   plain-tex-mode
                   latex-mode
                   LaTeX-mode)
    (sp-local-pair "\"`" "\"'"
                   :unless '(sp-latex-point-after-backslash sp-in-math-p)
                   :post-handlers '(sp-latex-skip-double-quote)))

and remove

(setq TeX-close-quote "")
(setq TeX-open-quote "")

again, which were added in b774a24