HPCC-9036 Remove "Legacy" pages

Remove legacy tabs from new ECL Watch.
Re-instate links on Wu Details Page.

Fixes HPCC-9036

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #4166 from GordonSmith/HPCC-9036

HPCC-9036 Remove "Legacy" pages

Richard Chapman <rchapman@hpccsystems.com>