ob-core: remove cruft
* lisp/ob-core.el (org-babel-execute-src-block): Simplify.
(org-babel-tramp-handle-call-process-region): Remove.
Commit
57104f9f changed an org-flet to a let, rendering the whole
apparatus of modifying call-process-region inoperative. Supposedly this
was put in place to work around a bug in
tramp-handle-call-process-region, which was removed from tramp in
2012 (after being renamed to tramp-sh-call-process-region). *shrug*
This commit just removes the whole thing.
It also no longer consults ‘org-src-lang-modes’, following on from
commit
6287416.