Remove AlignWakeUps from CombinedPowerExperiment in fieldtrial_testing_config.json.

This is a no-op because the feature is enabled by default, but we need
to make the change so that the testing config matches the server-side
experiment config.

Bug: 1382141
Change-Id: I3545a1dd1ff04b4ba5c0b6bf2e7650a63dd5d9b4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4071305
Commit-Queue: Francois Pierre Doray <fdoray@chromium.org>
Auto-Submit: Francois Pierre Doray <fdoray@chromium.org>
Reviewed-by: Olivier Li <olivierli@chromium.org>
Commit-Queue: Olivier Li <olivierli@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1078210}