Removed unused import

Author: kr-igor

dd-java-agent/testing/src/main/groovy/datadog/trace/agent/test/base/HttpClientTest.groovy

@@ -7,7 +7,6 @@ import datadog.trace.api.DDSpanTypes
 import datadog.trace.api.DDTags
 import datadog.trace.api.config.TracerConfig
 import datadog.trace.api.datastreams.DataStreamsContext
-import datadog.trace.api.datastreams.DataStreamsTags
 import datadog.trace.bootstrap.instrumentation.api.Tags
 import datadog.trace.bootstrap.instrumentation.api.URIUtils
 import datadog.trace.core.DDSpan