Removed redundant release notes folder.
Removed redundant release notes folder.

TODO: Find a way to list release notes from all previous releases.

bmwshop/brooklyn,andreaturli/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn,bmwshop/brooklyn,bmwshop/brooklyn,andreaturli/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn,bmwshop/brooklyn,andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,neykov/incubator-brooklyn,andreaturli/legacy-brooklyn,andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,aledsage/legacy-brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn