Fix NOTICE: remove config files

These config files are based on the defaults shipped with the given projects,
but just match snippets from the docs, and examples that are readily
available on a myriad of blogs. Our template config files are similar
to the default files, but unsurprisingly the defaults match docs and
thus match what one would write for a basic deployment.

See discussion on dev@brooklyn mailing list, subject: "Re: [VOTE] Release Apache Brooklyn 0.7.0-M2-incubating [rc0]"