[Clipboard] Move SVG format test to WPT folder.
SVG format is now in the clipboard API spec[1], so move the test to WPT
directory.
[1] https://w3c.github.io/clipboard-apis/#optional-data-types-x
Bug: 4070864
Change-Id: I92c162c405a0cfcb832d75d7829381e79931307a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5630343
Commit-Queue: Anupam Snigdha snianu@microsoft.com
Reviewed-by: Christine Hollingsworth christinesm@chromium.org
Cr-Commit-Position: refs/heads/main@{#1315440}