Merge pull request #507 from A248/remove-add-opens

Remove Add-Opens from manifest

proxy/build.gradle

@@ -28,7 +28,6 @@ jar {
         attributes 'Implementation-Version': version
         attributes 'Implementation-Vendor': "Velocity Contributors"
         attributes 'Multi-Release': 'true'
-        attributes 'Add-Opens': 'java.base/java.lang'
     }
 }