Hi,

I'd like to cleanup some files/directories which
remain after the gdb testsute runs.

I want to avoid using "rm -rf ..." since that can be dangerous.
Therefore I remove the *.gdb-index files, if any, and use
rmdir instead.  I am not sure if there is a better way,
instead of using "remote_exec host sh -c" to do the globbing.

Tested on x86_64-pc-linux-gnu.
Is it OK for trunk?


gdb/testsuite:
2021-05-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gdb.base/index-cache.exp: Cleanup $cache_dir/*.gdb-index and
        remove the directory.
        * gdb.dwarf2/per-bfd-sharing.exp: Likewise.