TokenVerifier class and its test class both have the Apache license instead of BSD 3

Environment details

N/A

Steps to reproduce

https://github.com/googleapis/google-auth-library-java/blob/master/oauth2_http/java/com/google/auth/oauth2/TokenVerifier.java

https://github.com/googleapis/google-auth-library-java/blob/master/oauth2_http/javatests/com/google/auth/oauth2/TokenVerifierTest.java

Stacktrace

N/A

Code snippet

N/A

External references such as API reference guides used

N/A

Any additional information below

N/A