Update get-build.sh

hack/get-build.sh

@@ -14,11 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# This script retrieves the specified version of the Kubernetes tar.gz file via
-# Google Cloud Storage.
-# Usage: `hack/get-build.sh <version number or publication>`.
-# Example: `./hack/get-build.sh release/latest`.
-
 set -o errexit
 set -o nounset
 set -o pipefail