chore: remove otlp logging

Let's stick with traces and metrics for now?

controller/src/instrumentation.rs

@@ -1,9 +1,7 @@
 use anyhow::{anyhow, Result};
 use once_cell::sync::Lazy;
 use opentelemetry::{trace::TracerProvider as _, KeyValue};
-use opentelemetry_appender_tracing::layer::OpenTelemetryTracingBridge;
 use opentelemetry_sdk::{
-    logs::LoggerProvider,
     metrics::{MeterProviderBuilder, PeriodicReader, SdkMeterProvider},
     runtime,
     trace::{RandomIdGenerator, Sampler, TracerProvider},
@@ -26,18 +24,6 @@ static RESOURCE: Lazy<Resource> = Lazy::new(|| {
     ])
 });
 
-// Construct LoggingProdiver for LoggingLayer
-fn init_logging_provider() -> Result<LoggerProvider> {
-    let exporter = opentelemetry_otlp::LogExporter::builder()
-        .with_tonic()
-        .build()?;
-    let logging_provider: LoggerProvider = LoggerProvider::builder()
-        .with_resource(RESOURCE.clone())
-        .with_batch_exporter(exporter, runtime::Tokio)
-        .build();
-    Ok(logging_provider)
-}
-
 // Construct MeterProvider for MetricsLayer
 fn init_meter_provider() -> Result<SdkMeterProvider> {
     let exporter = opentelemetry_otlp::MetricExporter::builder()
@@ -81,7 +67,6 @@ fn init_tracer_provider() -> Result<TracerProvider> {
 
 // Initialize tracing-subscriber and return OtelGuard for opentelemetry-related termination processing
 pub fn init_tracing_subscriber() -> Result<OtelGuard> {
-    let logging_provider = init_logging_provider()?;
     let meter_provider = init_meter_provider()?;
     let tracer_provider = init_tracer_provider()?;
 
@@ -92,18 +77,15 @@ pub fn init_tracing_subscriber() -> Result<OtelGuard> {
         .with(tracing_subscriber::fmt::layer())
         .with(MetricsLayer::new(meter_provider.clone()))
         .with(OpenTelemetryLayer::new(tracer))
-        .with(OpenTelemetryTracingBridge::new(&logging_provider))
         .init();
 
     Ok(OtelGuard {
-        logging_provider,
         meter_provider,
         tracer_provider,
     })
 }
 
 pub struct OtelGuard {
-    logging_provider: LoggerProvider,
     meter_provider: SdkMeterProvider,
     tracer_provider: TracerProvider,
 }
@@ -113,9 +95,6 @@ impl Drop for OtelGuard {
         if let Err(err) = self.tracer_provider.shutdown() {
             eprintln!("{err:?}");
         }
-        if let Err(err) = self.logging_provider.shutdown() {
-            eprintln!("{err:?}");
-        }
         if let Err(err) = self.meter_provider.shutdown() {
             eprintln!("{err:?}");
         }