Revert of Include isolate.py in data for Android unit tests (patchset #5 id:80001 of https://codereview.chromium.org/1784373002/ )

Reason for revert:
PRESUBMIT isn't working for non-android checkouts, as shown by:

https://codereview.chromium.org/1840913002/diff/1/build/android/test_runner.pydeps#oldcode138

Original issue's description:
> Include isolate.py in data for Android unit tests
>
> This is required for any test that uses an .isolate to push files to the
> device (e.g. base_unittests).
>
> BUG=589318
>
> Committed: https://crrev.com/9e299ea6bbf87415d64d9d84003162d71304ccb9
> Cr-Commit-Position: refs/heads/master@{#383127}

TBR=jochen@chromium.org,jbudorick@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=589318

Review URL: https://codereview.chromium.org/1839103002

Cr-Commit-Position: refs/heads/master@{#383733}
8 files changed