Revert "Replace AndroidX Preference[Dialog]FragmentCompat with the version from master"

This reverts commit 0ad6a0b8b4e4b2ec0fa6e67eff799060dc2004e4.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 802334 as the
culprit for failures in the build cycles as shown on:
https://analysis.chromium.org/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzBhZDZhMGI4YjRlNGIyZWMwZmE2ZTY3ZWZmNzk5MDYwZGMyMDA0ZTQM

Sample Failed Build: https://ci.chromium.org/b/8870779059616927872

Sample Failed Step: compile

Original change's description:
> Replace AndroidX Preference[Dialog]FragmentCompat with the version from master
> 
> This CL replaces the PreferenceFragmentCompat and
> PreferenceDialogFragmentCompat classes in the AndroidX preference
> library with the version from master, which has a change needed for
> WebLayer. The preference library maintainers say they won't create a new
> release just for this fix, so to get it we'll have to pull it in
> ourselves.
> 
> Bug: 1092986
> Change-Id: I0e1c936f6372cb541cabfa29c2aea0d0ee7225fb
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2253029
> Commit-Queue: Robbie McElrath <rmcelrath@chromium.org>
> Reviewed-by: Andrew Grieve <agrieve@chromium.org>
> Reviewed-by: Peter Wen <wnwen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#802334}


Change-Id: I25e202b3329b651719e2903f7378b7d5811b3435
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1092986
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2380635
Cr-Commit-Position: refs/heads/master@{#802376}