Disable network diagnostics in etcd
Disable network diagnostics in etcd

This new logging in etcd fills disk fast, and we don't care about what
it has to say.  Turning it off.

[#132260829]

Signed-off-by: Steve Taylor <2618d8eeb38db5666975df4fd945cc4512e3f384@pivotal.io>

cloudfoundry/cf-deployment,cloudfoundry/cf-deployment,emalm/cf-deployment