[broker] Remove duplicated lombok annotations in tests

[vzhikserg]

Motivation

Some of the classes in the pulsar-broker module had a mixture of the following lombok annotations:

@Data
@Setter	
@Getter	
@EqualsAndHashCode	
@ToString

The @Data annotation includes all other annotations:

All together now: A shortcut for @tostring, @EqualsAndHashCode, @Getter on all fields, @Setter on all non-final fields, and @requiredargsconstructor!

Modifications

Removed @Setter, @Getter, @EqualsAndHashCode, and '@tostring' if the @Data annotation was also present