Revert "Use recipe-specific drone builders."

This reverts commit 33798a25c8918eccf2e05959f32e0c367303aec1.

Reason for revert: There are a few usages of these builders that override the recipe that I wasn't aware of. This will cause postsubmit build failures.

Original change's description:
> Use recipe-specific drone builders.
>
> In https://flutter-review.googlesource.com/c/infra/+/82580 and
> https://dart-internal-review.git.corp.google.com/c/dart-internal/+/8800,
> we are adding builders that are for specific recipes. When we use these
> builders, we can avoid overriding the `recipe` property.
>
> Change-Id: Ibe61b4a6d98c1281f659a77a841e9796402b3c11
> Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/82581
> Commit-Queue: Jackson Gardner <jacksongardner@google.com>
> Reviewed-by: John McDole <codefu@google.com>

TBR=flutter-scoped@luci-project-accounts.iam.gserviceaccount.com,jacksongardner@google.com,codefu@google.com

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I6cd117b913039a6a37b7d6e507e9f32b97cbc129
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/83681
Commit-Queue: Jackson Gardner <jacksongardner@google.com>
Reviewed-by: John McDole <codefu@google.com>
Reviewed-by: Jackson Gardner <jacksongardner@google.com>
(cherry picked from commit b00b9443e99736774641034ce7f21307e4f76336)
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/83700
Reviewed-by: Reid Baker <reidbaker@google.com>