Minor fixups to let the network barclamp build. [1/1]

Made a couple of changes to let the network barclamp build in the new
build system.
 * Got rid of unneeded chef data bags.
 * got rid of metadata.json, replaced it with metadata.rb
 * Simplified crowbar.yml a bit.


 chef/cookbooks/network/metadata.json              |   36 ---
 chef/cookbooks/network/metadata.rb                |    6 +
 chef/data_bags/crowbar/bc-template-network.json   |  252 ---------------------
 chef/data_bags/crowbar/bc-template-network.schema |  167 --------------
 crowbar.yml                                       |   20 +-
 5 files changed, 7 insertions(+), 474 deletions(-)

Crowbar-Pull-ID: cfd54080692ef3d861af5ae115c411f0afc7af68

Crowbar-Release: development