Update Open data set link

- Remove duplicate unused page

Closes #2825

This should not be merged until pulibrary/lib_jobs#484 is complete

app/views/pages/dataset.html.erb

@@ -6,7 +6,7 @@
 
   <h2>Bibliographic Dataset</h2>
   <p>This dataset includes a variety of materials held by PUL (books, journals, special collections, and more) represented by records in <a href="https://www.loc.gov/marc/umb/">MARC format</a>. These records were created over time, and in accordance with different cataloging standards, so variations in the records are present.
-  <a href="https://bibdata.princeton.edu/events">Access the PUL Open Dataset here.</a></p>
+  <a href="https://lib-jobs.princeton.edu/open-marc-records">Access the PUL Open Dataset here.</a></p>
 
   <h2>Terms of Use</h2>
   <p>PUL makes this information freely available under the <a href="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 Public Domain Designation</a>. When possible, attribution should be given to Princeton University Library as a source of this data, but not necessarily the creator. In the spirit of information sharing, PUL encourages you to make any information derived from this dataset freely available.</p>