* agent/protect.c (agent_get_shadow_info_type): It's a write only
variable, useful for debugging.
* g10/key-check.c (key_check_all_keysigs): Likewise.
* g10/keyedit.c (show_basic_key_info, menu_expire): Likewise.
* scd/app-sc-hsm.c (read_ef_prkd): Likewise.
* dirmngr/crlfetch.c (fetch_next_ksba_cert): Initialize the vars.
* dirmngr/ks-action.c (ks_action_help): Remove unused variables.
* dirmngr/server.c (make_keyserver_item): Likewise.
* dirmngr/validate.c (check_cert_sig): Initialize the variable.
* scd/app-p15.c (select_and_read_record): Likewise.
* tests/gpgscm/scheme.c (scheme_init_new): A function with no args.