diff --git a/utils/renameio/doc.go b/utils/renameio/doc.go
index 67416df..cb4c16d 100644
--- a/utils/renameio/doc.go
+++ b/utils/renameio/doc.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 // Package renameio provides a way to atomically create or replace a file or
 // symbolic link.
 //
diff --git a/utils/renameio/example_test.go b/utils/renameio/example_test.go
index 1a0eaa8..cb08fa5 100644
--- a/utils/renameio/example_test.go
+++ b/utils/renameio/example_test.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 package renameio_test
 
 import (
diff --git a/utils/renameio/symlink_test.go b/utils/renameio/symlink_test.go
index 3046846..e82d1e1 100644
--- a/utils/renameio/symlink_test.go
+++ b/utils/renameio/symlink_test.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 // +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris windows
 
 package renameio
diff --git a/utils/renameio/tempfile.go b/utils/renameio/tempfile.go
index 9fe6f9b..acfad61 100644
--- a/utils/renameio/tempfile.go
+++ b/utils/renameio/tempfile.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 package renameio
 
 import (
diff --git a/utils/renameio/tempfile_linux_test.go b/utils/renameio/tempfile_linux_test.go
index 3842fd8..16da9b5 100644
--- a/utils/renameio/tempfile_linux_test.go
+++ b/utils/renameio/tempfile_linux_test.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 // +build linux
 
 package renameio
diff --git a/utils/renameio/writefile.go b/utils/renameio/writefile.go
index 187d2d4..35df136 100644
--- a/utils/renameio/writefile.go
+++ b/utils/renameio/writefile.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 package renameio
 
 import "os"
diff --git a/utils/renameio/writefile_test.go b/utils/renameio/writefile_test.go
index 8cdafef..dbe6984 100644
--- a/utils/renameio/writefile_test.go
+++ b/utils/renameio/writefile_test.go
@@ -1,17 +1,3 @@
-// Copyright 2018 Google Inc.
-//
-// 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.
-
 // +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris windows
 
 package renameio