Now that gdb is transitioning away from cleanups, there is no reason
to keep the cleanup and exception checker scripts around. This patch
removes them.
gdb/ChangeLog
2019-01-05 Tom Tromey <tom@tromey.com>
* contrib/cleanup_check.py: Remove.
* contrib/gcc-with-excheck: Remove.
* contrib/exsummary.py: Remove.
* contrib/excheck.py: Remove.