Remove redundant functional interfaces

[hunjipo]

Is your feature request related to a problem? Please describe.
In nacos-common moudle, there are two functional interfaces is BiFunction and BiConsumer. They are all copied from jdk8 or Apache Commons. I guess these functional interfaces were created because nacos used a JDK version lower than 8, but we wanted to use functional interfaces. But now, nacos depends on the JDK version. The minimum requirement is 8. Therefore, we can delete these interfaces and use the interfaces provided by JDK.

Describe the solution you'd like

Can I mention a PR to delete these interfaces?

Describe alternatives you've considered

Additional context
Add any other context or screenshots about the feature request here.

[BlackBAKA]

@i will solve it@