Remove all shebangs from Python modules and checker

As discussed, Python modules which aren't intended to be invoked
as scripts should not include a shebang line.

Fix kubernetes-client#12.

Author: oz123

config/__init__.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/dateutil.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2017 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/dateutil_test.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/exec_provider.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/exec_provider_test.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/incluster_config.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/incluster_config_test.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/kube_config.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

config/kube_config_test.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

hack/boilerplate/boilerplate.py.txt

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright YEAR The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

stream/__init__.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2017 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

stream/stream.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

stream/ws_client.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

stream/ws_client_test.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2018 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

watch/__init__.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

watch/watch.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

watch/watch_test.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");