message: Remove unused targets tink_python and cmake_source_files in top-level BUILD.bazel.
diff: # Tink (https://github.com/google/tink) is a small crypto library that
  # provides a safe, simple, agile and fast way to accomplish some common
  # crypto tasks.
  -load("@rules_python//python:defs.bzl", "py_library")
  -
  package(default_visibility = ["//:__subpackages__"])
  licenses(["notice"])
  @@ -19,21 +17,3 @@ filegroup(
  srcs = ["tink_version.bzl"],
  visibility = ["//visibility:public"],
  )
  -
  -filegroup(
  - name = "cmake_source_files",
  - data = glob(["cmake/**"]) + [
  - "//cc",
  - "CMakeLists.txt",
  - "tink_version.cmake",
  - ],
  -)
  -
  -py_library(
  - name = "tink_python",
  - srcs = ["__init__.py"],
  - visibility = ["//visibility:public"],
  - deps = [
  - "//python:tink",
  - ],
  -)
  