Manual roll requested by zra@google.com

Cannot build log URL because revision "73a2de5da53f" is invalid: Luci
builds of "Mac builder_cache" for
73a2de5da53f8ab133e88b43d05189879c370cb3 was INFRA_FAILURE

2024-01-17 98614782+auto-submit[bot]@users.noreply.github.com Reverts
"[Impeller] Encode directly to command buffer for Vulkan."
(flutter/engine#49818)
2024-01-17 zanderso@users.noreply.github.com Revert "Add
gclient_variables back for linux_license and fix the excluded files"
(flutter/engine#49817)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC jonahwilliams@google.com,rmistry@google.com,zra@google.com on
the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md