Fix C++20-incompatible instances of aggregate initialization (#23911)

In C++20, types that declare or delete any constructors are no longer
aggregates, breaking compilation of many existing uses of aggregate
initialization.

Fix this for EmberBindingTableEntry by removing the explicitly defaulted
constructor.

src/app/util/types_stub.h

@@ -451,8 +451,6 @@ enum
  */
 struct EmberBindingTableEntry
 {
-    EmberBindingTableEntry() = default;
-
     static EmberBindingTableEntry ForNode(chip::FabricIndex fabric, chip::NodeId node, chip::EndpointId localEndpoint,
                                           chip::EndpointId remoteEndpoint, chip::Optional<chip::ClusterId> cluster)
     {