Remove not used show databases

Signed-off-by: Xuanwo <github@xuanwo.io>

Author: Xuanwo

src/query/service/src/interpreters/interpreter_show_databases.rs

@@ -58,7 +58,6 @@ mod interpreter_share_grant_object;
 mod interpreter_share_revoke_object;
 mod interpreter_share_show;
 mod interpreter_share_show_grant_tenants;
-mod interpreter_show_databases;
 mod interpreter_show_functions;
 mod interpreter_show_grants;
 mod interpreter_show_metrics;
@@ -146,7 +145,6 @@ pub use interpreter_share_grant_object::GrantShareObjectInterpreter;
 pub use interpreter_share_revoke_object::RevokeShareObjectInterpreter;
 pub use interpreter_share_show::ShowSharesInterpreter;
 pub use interpreter_share_show_grant_tenants::ShowGrantTenantsOfShareInterpreter;
-pub use interpreter_show_databases::ShowDatabasesInterpreter;
 pub use interpreter_show_functions::ShowFunctionsInterpreter;
 pub use interpreter_show_grants::ShowGrantsInterpreter;
 pub use interpreter_show_metrics::ShowMetricsInterpreter;