Cleanup obsolete datasets and add examples of EDDTableFromSOS and EDD…

[ChrisJohnNOAA]

…GridFromDap

Description

This updates example datasets in the Jetty datasets.xml file.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist before requesting a review

• I have performed a self-review of my code
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes