Revert "Migrate uses of deferred proxies to lazy proxies"

This reverts commit 990a0d8b6563941d69aa24ecae847be150ab1128.

Reason for revert: Keeping it. Deferred proxies are uploaded later than lazy and we want that for this use case.

Original change's description:
> Migrate uses of deferred proxies to lazy proxies
>
> A follow-up CL removes the deferred proxies system entirely.
>
> Bug: skia:11288
> Change-Id: Ic5b3ce820ea946f6ae27bd763c0f389caf8863d1
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/366716
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Adlai Holler <adlai@google.com>

TBR=bsalomon@google.com,robertphillips@google.com,adlai@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: skia:11288
Change-Id: I9ced532d013805afae3b20baa53cab31cae2b953
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/368797
Reviewed-by: Adlai Holler <adlai@google.com>
Commit-Queue: Adlai Holler <adlai@google.com>
8 files changed