gpgsm: Fix delete and store certificate locking glitches.
* sm/keydb.c (do_insert_cert): Rename from keydb_insert_cert. Don't call unlock_all. (keydb_delete): Don't call unlock_all. (keydb_store_cert): Use keydb_lock, instead of internal lock_all directly. Follow the name change of do_insert_cert.
- GnuPG-bug-id: T7855
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>