Removing workaround of openjdk/jdk11u-dev#1475 (#403)

Author: SachinMali

core/src/main/java/com/adobe/aem/guides/wknd/core/models/package-info.java

@@ -13,5 +13,5 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-/** */@org.osgi.annotation.versioning.Version("2.1.0")
+@org.osgi.annotation.versioning.Version("2.1.0")
 package com.adobe.aem.guides.wknd.core.models;