clean up var name

Author: mabdinur

packages/dd-trace/src/config.js

@@ -626,11 +626,11 @@ class Config {
     target.otelMaxExportBatchSize = nonNegInt(OTEL_BSP_MAX_EXPORT_BATCH_SIZE, 'OTEL_BSP_MAX_EXPORT_BATCH_SIZE', false)
     target.otelMaxQueueSize = nonNegInt(OTEL_BSP_MAX_QUEUE_SIZE, 'OTEL_BSP_MAX_QUEUE_SIZE', false)
 
-    const otelMetricsExporter = OTEL_METRICS_EXPORTER?.toLowerCase() !== 'none'
+    const otelMetricsExporterEnabled = OTEL_METRICS_EXPORTER?.toLowerCase() !== 'none'
     this.#setBoolean(
       target,
       'otelMetricsEnabled',
-      DD_METRICS_OTEL_ENABLED && isTrue(DD_METRICS_OTEL_ENABLED) && otelMetricsExporter
+      DD_METRICS_OTEL_ENABLED && isTrue(DD_METRICS_OTEL_ENABLED) && otelMetricsExporterEnabled
     )
     // Set OpenTelemetry metrics configuration with specific _METRICS_ vars
     // taking precedence over generic _EXPORTERS_ vars