Use the general Wallet valuables IPH for loyalty cards.

A new and more generic IPH is being introduced for Wallet passes shown
via autofill ai suggestions. With this CL, the new IPH will replace the
one that was put in place for loyalty cards.

Bug: 441736482
Change-Id: I33c4b0afc426f4b2fdedb2a58648c3f6b469e867
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7003120
Commit-Queue: Norge Vizcay <vizcay@google.com>
Reviewed-by: Luchen Peng <luchenpeng@google.com>
Cr-Commit-Position: refs/heads/main@{#1523638}