Remove runtime from no-op buildspec.
Remove runtime from no-op buildspec.

Runtimes aren't needed, and the runtimes available depend on the image, so we shouldn't depend on any specific runtime so that we can use the no-op buildspec on any image.

aws/aws-sdk-java-v2,aws/aws-sdk-java-v2,aws/aws-sdk-java-v2,aws/aws-sdk-java-v2,aws/aws-sdk-java-v2