Remove support for Gradle's maven plugin

Closes gh-333

src/docs/asciidoc/index.adoc

@@ -836,11 +836,11 @@ dependencyManagement {
 [[pom-generation]]
 == Pom generation
 
-Gradle's `maven` and `maven-publish` plugins automatically generate a pom file that
-describes the published artifact. The plugin will automatically include any global
-dependency management, i.e. dependency management that does not target a specific
-configuration, in the `<dependencyManagement>` section of the generated pom file. For
-example, the following dependency management configuration:
+Gradle's `maven-publish` plugins automatically generate a pom file that describes the
+published artifact. The plugin will automatically include any global dependency
+management, i.e. dependency management that does not target a specific configuration,
+in the `<dependencyManagement>` section of the generated pom file. For example, the
+following dependency management configuration:
 
 [source,groovy,indent=0,subs="verbatim,attributes",role="primary"]
 .Groovy
@@ -923,9 +923,9 @@ dependencyManagement {
 [[pom-generation-manual]]
 === Configuring your own pom
 
-If your build creates a pom outside of Gradle's standard `maven` and `maven-publish`
-mechanisms you can still configure its dependency management by using the `pomConfigurer`
-from `dependencyManagement`:
+If your build creates a pom outside of Gradle's standard `maven-publish` mechanism you
+can still configure its dependency management by using the `pomConfigurer` from
+`dependencyManagement`:
 
 [source,indent=0,subs="verbatim,attributes"]
 ----

src/main/java/io/spring/gradle/dependencymanagement/DependencyManagementPlugin.java

@@ -22,11 +22,9 @@
 import org.gradle.api.Action;
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
-import org.gradle.api.Task;
 import org.gradle.api.publish.PublishingExtension;
 import org.gradle.api.publish.maven.MavenPublication;
 import org.gradle.api.publish.maven.plugins.MavenPublishPlugin;
-import org.gradle.api.tasks.Upload;
 
 /**
  * Main class for the dependency management plugin.
@@ -54,31 +52,6 @@ public void apply(final Project project) {
 	private void configurePomCustomization(final Project project,
 			DependencyManagementExtension dependencyManagementExtension) {
 		final PomDependencyManagementConfigurer pomConfigurer = dependencyManagementExtension.getPomConfigurer();
-		project.getTasks().withType(Upload.class, new Action<Upload>() {
-
-			@Override
-			public void execute(final Upload upload) {
-				upload.doFirst(new Action<Task>() {
-
-					@Override
-					@SuppressWarnings("deprecation")
-					public void execute(Task task) {
-						upload.getRepositories().withType(org.gradle.api.artifacts.maven.MavenResolver.class,
-								new Action<org.gradle.api.artifacts.maven.MavenResolver>() {
-
-									@Override
-									public void execute(org.gradle.api.artifacts.maven.MavenResolver mavenResolver) {
-										mavenResolver.getPom().withXml(pomConfigurer);
-									}
-
-								});
-					}
-
-				});
-
-			}
-
-		});
 		project.getPlugins().withType(MavenPublishPlugin.class, new Action<MavenPublishPlugin>() {
 
 			@Override