Polish test fixture publication skipping config

Thanks to @jjohannes for the tip.

See gh-23550

gradle/spring-module.gradle

@@ -55,17 +55,17 @@ task javadocJar(type: Jar) {
 publishing {
 	publications {
 		mavenJava(MavenPublication) {
-			// Disable publication of test fixture artifacts.
-			//
-			// Once we upgrade to Gradle 6.x, we will need to delete the following line ...
-			components.java.variants.removeAll { it.outgoingConfiguration.name.startsWith("testFixtures") }
-			// ... and uncomment the following two lines.
-			// components.java.withVariantsFromConfiguration(configurations.testFixturesApiElements) { skip() }
-			// components.java.withVariantsFromConfiguration(configurations.testFixturesRuntimeElements) { skip() }
-
 			from components.java
 			artifact sourcesJar
 			artifact javadocJar
 		}
 	}
 }
+
+// Disable publication of test fixture artifacts.
+//
+// Once we upgrade to Gradle 6.x, we will need to delete the following line ...
+components.java.variants.removeAll { it.outgoingConfiguration.name.startsWith("testFixtures") }
+// ... and uncomment the following two lines.
+// components.java.withVariantsFromConfiguration(configurations.testFixturesApiElements) { skip() }
+// components.java.withVariantsFromConfiguration(configurations.testFixturesRuntimeElements) { skip() }