Use the 'Remove redundant empty class body' quick-fix to clean up the code.
Examples:
class EmptyA() {} // <== empty body
class EmptyB {
companion object {} // <== empty body
}
fun emptyC() {
object {} // <== anonymous object, it's ok (not reported)
}
After the quick fix is applied:
class EmptyA()
class EmptyB {
companion object
}
fun emptyC() {
object {}
}