[v25.1.x] [CORE-13087] dl/coordinator: don't purge data when dropping Glue table

[vbotbuildovich]

Backport #27367 to branch v25.1.x. This issue was created as a placeholder because the original PR's commit(s) could not be automatically cherry-picked.
Here are the commands to execute:

git checkout v25.1.x
git checkout -b manual-backport-27367-v25.1.x-337
git cherry-pick -x 60093e7213 dac352433a

git push origin manual-backport-27367-v25.1.x-337
gh pr create \
  --title "[v25.1.x] [CORE-13087] dl/coordinator: don't purge data when dropping Glue table" \
  --base "v25.1.x" \
  --label "kind/backport" \
  --head "manual-backport-27367-v25.1.x-337" \
  --draft \
  --repo "redpanda-data/redpanda" \
  --milestone "v25.1.x-next" \
  --body "Backport of PR https://github.com/redpanda-data/redpanda/pull/27367 "

[CORE-13087]: https://redpandadata.atlassian.net/browse/CORE-13087?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

JIRA Link: [CORE-13228](https://redpandadata.atlassian.net/browse/CORE-13228)

[CORE-13228]: https://redpandadata.atlassian.net/browse/CORE-13228?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ