Remove duplicate strategy since duplicate was resolved in gorm-hibern…

…ate5 dependencies

examples/pubsub-demo/build.gradle

@@ -50,17 +50,4 @@ dependencies {
 // Don't need groovydoc for example project
 tasks.named('groovydoc') {
     enabled = false
-}
-
-bootJar {
-    duplicatesStrategy = DuplicatesStrategy.INCLUDE
-}
-
-distTar {
-    duplicatesStrategy = DuplicatesStrategy.INCLUDE
-}
-
-distZip {
-    duplicatesStrategy = DuplicatesStrategy.INCLUDE
-}
-
+}