chore: update license info on PR template

Author: nikhilym

.github/PULL_REQUEST_TEMPLATE.md

@@ -31,10 +31,8 @@
 - [ ] All new and existing tests passed
 
 ## License
-<!--- The SDK is released under the [Apache 2.0 license][license], so any code you submit will be released under that license -->
-<!--- For substantial contributions, we may ask you to sign a [Contributor License Agreement (CLA)][cla] -->
-<!--- Put an `x` in the below box if you confirm that this request can be released under the Apache 2 license -->
-- [ ] I confirm that this pull request can be released under the Apache 2 license
+- [ ] By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.
+
 
 [issues]: https://github.com/alexa/alexa-skills-kit-sdk-for-python/issues
 [license]: http://aws.amazon.com/apache2.0/