Revert "[AF][IOS] Split Autofill settings page into two separate pages"

This reverts commit 0609fce66284c741b2a63d4a9b548555af2ad8d3.

Reason for revert: ios tests failing -- see crbug/875313

Original change's description:
> [AF][IOS] Split Autofill settings page into two separate pages
> 
> Splits Autofill settings page into two separate pages, one for addresses
> and the other for credit cards.
> 
> Bug: 860526
> Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
> Change-Id: I8f02f93fbd54fc17c2b97e5a97d9d5a08f729197
> Reviewed-on: https://chromium-review.googlesource.com/1173314
> Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
> Reviewed-by: Rohit Rao <rohitrao@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#583716}

TBR=rohitrao@chromium.org,mahmadi@chromium.org

Change-Id: If4646cab4665d962e4ee166516a961390cb54436
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 860526
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Reviewed-on: https://chromium-review.googlesource.com/1179342
Reviewed-by: apacible <apacible@chromium.org>
Commit-Queue: apacible <apacible@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584110}
26 files changed