chore(bigquery): remove dev gate flag and beta api for tracing telemetry

java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/spi/v2/HttpBigQueryRpc.java

@@ -88,8 +88,6 @@ public class HttpBigQueryRpc implements BigQueryRpc {
 
   public static final String DEFAULT_PROJECTION = "full";
   private static final String BASE_RESUMABLE_URI = "upload/bigquery/v2/projects/";
-  static final String HTTP_TRACING_DEV_GATE_PROPERTY =
-      "com.google.cloud.bigquery.http.tracing.dev.enabled";
   static final String RESOURCE_PROJECT_PREFIX = "//bigquery.googleapis.com/projects/";
   // see:
   // https://cloud.google.com/bigquery/loading-data-post-request#resume-upload
@@ -121,8 +119,7 @@ public HttpBigQueryRpc(BigQueryOptions options) {
     this.urlDomain = new GenericUrl(options.getResolvedApiaryHost("bigquery")).getHost();
 
     if (options.isOpenTelemetryTracingEnabled()
-        && options.getOpenTelemetryTracer() != null
-        && isHttpTracingEnabled()) {
+        && options.getOpenTelemetryTracer() != null) {
       initializer =
           new HttpTracingRequestInitializer(initializer, options.getOpenTelemetryTracer());
     }
@@ -2146,14 +2143,11 @@ private Span createRpcTracingSpan(
             .setSpanKind(SpanKind.CLIENT)
             .setAttribute("bq.rpc.service", service)
             .setAttribute("bq.rpc.method", method)
-            .setAttribute("bq.rpc.system", "http");
-    if (isHttpTracingEnabled()) {
-      builder
-          .setAttribute(
-              BigQueryTelemetryTracer.GCP_RESOURCE_DESTINATION_ID, gcpResourceDestinationId)
-          .setAttribute(BigQueryTelemetryTracer.URL_TEMPLATE, urlTemplate)
-          .setAttribute(BigQueryTelemetryTracer.URL_DOMAIN, this.urlDomain);
-    }
+            .setAttribute("bq.rpc.system", "http")
+        .setAttribute(
+            BigQueryTelemetryTracer.GCP_RESOURCE_DESTINATION_ID, gcpResourceDestinationId)
+        .setAttribute(BigQueryTelemetryTracer.URL_TEMPLATE, urlTemplate)
+        .setAttribute(BigQueryTelemetryTracer.URL_DOMAIN, this.urlDomain);
 
     if (options != null) {
       builder.setAllAttributes(otelAttributesFromOptions(options));
@@ -2175,13 +2169,11 @@ private <T> T executeWithSpan(Span span, SpanOperation<T> operation) throws IOEx
     try (Scope scope = span.makeCurrent()) {
       return operation.execute(span);
     } catch (Exception e) {
-      if (isHttpTracingEnabled()) {
-        if (e instanceof GoogleJsonResponseException) {
-          BigQueryTelemetryTracer.addServerErrorResponseToSpan(
-              ((GoogleJsonResponseException) e), span);
-        } else {
-          BigQueryTelemetryTracer.addExceptionToSpan(e, span);
-        }
+      if (e instanceof GoogleJsonResponseException) {
+        BigQueryTelemetryTracer.addServerErrorResponseToSpan(
+            ((GoogleJsonResponseException) e), span);
+      } else {
+        BigQueryTelemetryTracer.addExceptionToSpan(e, span);
       }
       throw e;
     } finally {
@@ -2203,12 +2195,4 @@ private static Attributes otelAttributesFromOptions(Map<Option, ?> options) {
     return builder.build();
   }
 
-  /**
-   * Temporary development gate for HttpTracingRequestInitializer rollout: must be explicitly
-   * enabled with the system property. tracking ticket for removal:
-   * https://github.com/googleapis/google-cloud-java/issues/12100
-   */
-  static boolean isHttpTracingEnabled() {
-    return Boolean.parseBoolean(System.getProperty(HTTP_TRACING_DEV_GATE_PROPERTY));
-  }
 }

java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITOpenTelemetryTest.java

@@ -54,7 +54,6 @@ public class ITOpenTelemetryTest {
 
   @BeforeAll
   public static void setUpClass() throws IOException {
-    System.setProperty("com.google.cloud.bigquery.http.tracing.dev.enabled", "true");
     bigqueryHelper = RemoteBigQueryHelper.create();
   }