Do not apply publish plugin as part of BuildPlugin

- This should remove quite some boilerplate (only ~35 projects are published via maven vs 175 projects build plugin is applied too)

Author: breskeby

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/BuildPlugin.java

@@ -59,7 +59,6 @@ public void apply(final Project project) {
         }
 
         project.getPluginManager().apply("elasticsearch.java");
-        project.getPluginManager().apply("elasticsearch.publish");
         project.getPluginManager().apply(ElasticsearchJavadocPlugin.class);
         project.getPluginManager().apply(DependenciesInfoPlugin.class);
         project.getPluginManager().apply(SnykDependencyMonitoringGradlePlugin.class);

client/test/build.gradle

@@ -17,10 +17,6 @@ java {
 
 group = "${group}.client.test"
 
-// rest client sniffer is licenses under Apache 2.0
-projectLicenses.set(['The Apache Software License, Version 2.0': providers.provider(() -> 'http://www.apache.org/licenses/LICENSE-2.0')])
-licenseFile.set(layout.getSettingsDirectory().file('licenses/APACHE-LICENSE-2.0.txt').asFile)
-
 dependencies {
   api "org.apache.httpcomponents:httpcore:${versions.httpcore}"
   api "com.carrotsearch.randomizedtesting:randomizedtesting-runner:${versions.randomizedrunner}"