Fix x_catch_errors-related abort after X disconnects. (Reported by Dan Nicolaescu).

Fix x_catch_errors-related abort after X disconnects. (Reported by Dan Nicolaescu).

* src/xterm.h: Remove declaration for x_fully_uncatch_errors.

* src/xterm.c (x_fully_uncatch_errors): Disable definition.

* src/eval.c (unwind_to_catch): Don't call x_fully_uncatch_errors.
  (internal_condition_case, internal_condition_case_1)
  (internal_condition_case_2): Don't abort when x_catching_errors.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-576