[CSP] Remove code for navigate-to
The implementation of the CSP 'navigate-to' directive has been living
behind a flag for some time now. In the mean time, however,
'navigate-to' has been removed from the specification
(w3c/webappsec-csp#564). This CL cleans up the
implementation in chrome, which is anyway unlikely to be shipped in
the near future.
Bug: 365627779,40918092
Change-Id: I58b6ef7426d2e97c28fcb226781bf4f63bbc355c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5850982
Reviewed-by: Mike West mkwst@chromium.org
Reviewed-by: Arthur Sonzogni arthursonzogni@chromium.org
Commit-Queue: Antonio Sartori antoniosartori@chromium.org
Cr-Commit-Position: refs/heads/main@{#1354433}