Remove tests based on flag-based Bazel rules

It will be easier to make use of the buffet build modules if
we don't have similar-sounding names in the way.

Change-Id: I58d04f52cf8f49fd41a56eef6129e6b605cce394
Bug: b/40045064
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/763561
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
7 files changed