Export back-ends: Remove quote section translators
* lisp/ox-ascii.el (org-ascii--current-text-width): Remove
`quote-section' reference.
(org-ascii-quote-section): Remove function.
* lisp/ox-html.el (org-html-quote-section): Remove function.
* lisp/ox-man.el (org-man-quote-section): Remove function.
* lisp/ox-md.el (org-md-quote-section): Remove function.
* lisp/ox-odt.el (org-odt-quote-section): Remove function.
* lisp/ox-org.el (org-org-quote-section): Remove function.
* lisp/ox-texinfo.el (org-texinfo-quote-section): Remove function.