Consolidate bazel version specification to always take from .bazelversion (#1116)
Consolidate bazel version specification to always take from .bazelversion (#1116)

This PR consolidate bazel version specification to always take from .bazelversion,
in order to avoid out-of-sync in case of updates.

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>
tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io