Clean up field caps test after fix (#83405)

Since pushing #82716, the tests in #80335 have only failed on the 7.16 branch, i.e. the branch that did not get the fix. We can close the issue (so that it can be reopened when another failure occurs).

Closes #80335

qa/mixed-cluster/build.gradle

@@ -31,9 +31,6 @@ BuildParams.bwcVersions.withWireCompatiple { bwcVersion, baseName ->
       numberOfNodes = 4
       setting 'path.repo', "${buildDir}/cluster/shared/repo/${baseName}"
       setting 'xpack.security.enabled', 'false'
-      // extra logger settings to help debug https://github.com/elastic/elasticsearch/issues/80335
-      setting 'logger.org.elasticsearch.transport.TransportService.tracer', 'TRACE'
-      setting 'transport.tracer.include', '"indices:data/read/field_caps*"'
     }
 
     tasks.register("${baseName}#mixedClusterTest", StandaloneRestIntegTestTask) {