Deletes unnecessary license gathering scripts from the release process.

* Delete license.sh

* Delete third_party_licenses.csv

* Update build_docker_image.sh

* Update Dockerfile

Update version to 0.24.0

* Update version.py to 0.24.0

Deletes unnecessary license gathering scripts from the release process.

* Update RELEASE.md

* Update RELEASE.md

* Update README.md

* Update version.py

* Update dependencies.py

* Update RELEASE.md

* Update RELEASE.md

* Update Dockerfile

* Update build_docker_image.sh

* Delete license.sh

* Delete third_party_licenses.csv

* Update test_utils.py

Merge pull request tensorflow#2543 from dhruvesh09/r0.24.0

Update version.py to use 0.24.0-rc1

Merge pull request tensorflow#2499 from dhruvesh09/r0.24.0

R0.24.0

Merge pull request tensorflow#2433 from dhruvesh09/r0.23.0

Add license for pbr, which is a new dependency.

Merge pull request tensorflow#2352 from dhruvesh09/r0.23.0

Update version.py

Merge pull request tensorflow#2171 from dhruvesh09/r0.22.0

R0.22.0

Merge pull request tensorflow#2148 from dhruvesh09/r0.22.0

Update version.py

Merge pull request tensorflow#2140 from dhruvesh09/r0.22.0

Fixes the url of the LICENSE for idna package.