Remove support for module layout

Closes gh-8107

spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/RepackageMojo.java

@@ -236,10 +236,6 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 		repackager.setMainClass(this.mainClass);
 		if (this.layout != null) {
 			getLog().info("Layout: " + this.layout);
-			if (this.layout == LayoutType.MODULE) {
-				getLog().warn("Module layout is deprecated. Please use a custom"
-						+ " LayoutFactory instead.");
-			}
 			repackager.setLayout(this.layout.layout());
 		}
 		return repackager;
@@ -346,12 +342,6 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 		 */
 		DIR(new Layouts.Expanded()),
 
-		/**
-		 * Module Layout.
-		 * @deprecated since 1.5 in favour of a custom {@link LayoutFactory}
-		 */
-		@Deprecated MODULE(new Layouts.Module()),
-
 		/**
 		 * No Layout.
 		 */