Some delete commands in networkv2 are exist in both network
and compute, They can use NetworkAndComputeDeleteclass to
supprot bulk deletion and error handling and the codes are
similar, so I change them all in this patch. The changed
commands including:
1.floating ip delete
2.security group delete
3.security group rule delete
Also, I update unit tests and docs for these commands in this patch.
Change-Id: I6c94c3d10ba579ddd9b14d17673c821e3481fd8a
Partially-Implements: blueprint multi-argument-network
8e2f49fbf2