Revert "[roll_to_dev] Use a single push command for commits and tag"

This reverts commit 08d8e72b4dcb3c15172ff1d91d08350fca2693db.

Reason for revert: b/169389802#comment3

Original change's description:
> [roll_to_dev] Use a single push command for commits and tag
>
> b/169389802
>
> Change-Id: I4e3703235a2f2f15d7725a11aa5f5df1f7c2432b
> Reviewed-on: https://dart-review.googlesource.com/c/recipes/+/164520
> Reviewed-by: William Hesse <whesse@google.com>
> Commit-Queue: Alexander Thomas <athom@google.com>

TBR=whesse@google.com,athom@google.com

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

Change-Id: I58496593f64e44bd3e947e07a14883c7c05049b0
Reviewed-on: https://dart-review.googlesource.com/c/recipes/+/165242
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: William Hesse <whesse@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>
2 files changed