remove unnecessary code

Author: mhlidd

dd-trace-core/src/main/java/datadog/trace/common/metrics/ConflatingMetricsAggregator.java

@@ -4,7 +4,6 @@
 import static datadog.trace.api.DDSpanTypes.RPC;
 import static datadog.trace.bootstrap.instrumentation.api.Tags.HTTP_ENDPOINT;
 import static datadog.trace.bootstrap.instrumentation.api.Tags.HTTP_METHOD;
-import static datadog.trace.bootstrap.instrumentation.api.Tags.HTTP_ROUTE;
 import static datadog.trace.bootstrap.instrumentation.api.Tags.SPAN_KIND;
 import static datadog.trace.common.metrics.AggregateEntry.ERROR_TAG;
 import static datadog.trace.common.metrics.AggregateEntry.TOP_LEVEL_TAG;
@@ -347,7 +346,6 @@ private boolean publish(CoreSpan<?> span, boolean isTopLevel) {
       Object httpMethodObj = span.unsafeGetTag(HTTP_METHOD);
       httpMethod = httpMethodObj != null ? httpMethodObj.toString() : null;
       Object httpEndpointObj = span.unsafeGetTag(HTTP_ENDPOINT);
-      httpEndpointObj = httpEndpointObj != null ? httpEndpointObj : span.unsafeGetTag(HTTP_ROUTE);
       httpEndpoint = httpEndpointObj != null ? httpEndpointObj.toString() : null;
     }