remove unused imports, mark unused arg

Author: BenoitRanque

crates/configuration/src/configuration.rs

@@ -1,11 +1,5 @@
 //! Configuration for the connector.
 
-use std::collections::BTreeMap;
-use std::path::Path;
-
-use query_engine_metadata::metadata;
-use sqlx::postgres::PgConnectOptions;
-
 use crate::connect::SslInfo;
 use crate::environment::Environment;
 use crate::error::{
@@ -17,7 +11,10 @@ use crate::version3;
 use crate::version4;
 use crate::version5;
 use crate::VersionTag;
+use query_engine_metadata::metadata;
 use schemars::{gen::SchemaSettings, schema::RootSchema};
+use std::collections::BTreeMap;
+use std::path::Path;
 
 pub fn generate_latest_schema() -> RootSchema {
     SchemaSettings::openapi3()

crates/connectors/ndc-postgres/src/state.rs

@@ -452,7 +452,7 @@ impl<T> From<std::sync::PoisonError<T>> for LockError {
 /// Create a connection pool and wrap it inside a connector State.
 pub async fn create_state(
     connection_settings: &ConnectionSettings,
-    environment: &impl Environment,
+    _environment: &impl Environment,
     pool_settings: &PoolSettings,
     metrics_registry: &mut prometheus::Registry,
     version_tag: ndc_postgres_configuration::VersionTag,

crates/query-engine/execution/src/metrics.rs

@@ -1,13 +1,8 @@
 //! Metrics setup and update for our connector.
 
-use std::time::Duration;
-
-use prometheus::{
-    Gauge, GaugeVec, Histogram, HistogramTimer, IntCounter, IntGauge, IntGaugeVec, Registry,
-};
-use sqlx::database;
-
 use crate::database_info::DatabaseInfo;
+use prometheus::{GaugeVec, Histogram, HistogramTimer, IntCounter, IntGaugeVec, Registry};
+use std::time::Duration;
 
 /// The collection of all metrics exposed through the `/metrics` endpoint.
 #[derive(Debug, Clone)]