Removed disable of xpack.security

Author: andsel

Diff for: .ci/Dockerfile.elasticsearch

@@ -11,8 +11,6 @@ RUN rm -f $es_path/config/scripts
 COPY --chown=elasticsearch:elasticsearch spec/fixtures/test_certs/* $es_path/config/test_certs/
 COPY --chown=elasticsearch:elasticsearch .ci/elasticsearch-run.sh $es_path/
 
-RUN echo "xpack.security.enabled: false" >> $es_yml
-
 RUN if [ "$SECURE_INTEGRATION" = "true" ] ; then echo "xpack.security.http.ssl.enabled: $SECURE_INTEGRATION" >> $es_yml; fi
 RUN if [ "$SECURE_INTEGRATION" = "true" ] ; then echo "xpack.security.http.ssl.key: $es_path/config/test_certs/test.key" >> $es_yml; fi
 RUN if [ "$SECURE_INTEGRATION" = "true" ] ; then echo "xpack.security.http.ssl.certificate: $es_path/config/test_certs/test.crt" >> $es_yml; fi

Diff for: lib/logstash/outputs/elasticsearch/http_client/pool.rb

@@ -297,7 +297,7 @@ def elasticsearch?(url)
 
     def valid_tagline?(version_info)
       tagline = version_info['tagline']
-     tagline == "You Know, for Search"
+      tagline == "You Know, for Search"
     end
 
     def stop_resurrectionist