Clean up spacing and layout. Ensure that the different variants are as similar to each other as possible.
[SNOWDROP-101, WFK2-552] - Replace hibernate-core dependency with hibernate-jpa-2.0-api in sportsclub-jpa-dao.
Remove unused dependencies.
[SNOWDROP-101 & WFK2-552] - Replace hibernate-core dependency by hibernate-jpa-2.0-api in sportsclub-jpa-dao submodule.

[SNOWDROP-100 & WFK2-551] - Remove not required hibernate-commons-annotation.

Remove other unused dependencies.

Remove unused import statements.

Clean up the spacing and indents.
[WFK2-550] - Remove hard-coded Hibernate related dependencies from sportsclub-bom.