Remove unneeded `__init__.py`

PiperOrigin-RevId: 454823637
Change-Id: Ia7a4361b9d2a6bfe5f93542db76fb9ac1797d903

docker/__init__.py

-# Copyright 2022 DeepMind Technologies Limited
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""Docker run components of AlphaFold v2.0."""