We plan to remove these; so we instead manually register all key managers in python.

PiperOrigin-RevId: 260936807

To replicate:
find -name BUILD.bazel -exec sed -Ei 's/\s+# Apache 2.0$//' {} \;
find -name BUILD.bazel -exec sed -Ei 's/\s+# Apache 2.0 # keep$/  # keep/' {} \;

PiperOrigin-RevId: 257604221

PiperOrigin-RevId: 257399186