Update Compute API v2 and Extensions docs

* Removes the following API Doc references:
  - os-admin-actions
  - os-console-output
  - os-consoles
  - os-deferred-delete
  - os-rescue
  - os-server-start-stop
  - ext-os-flavor-access
  - ext-os-flavor-extra-specs
  - ext-os-flavor-rxtx
  - ext-os-flavorextradata
  - ext-os-flavormanage
  - ext-os-ext-img-size
  - compute_limits_admins
  - os-agents
  - os-aggregates
  - os-certificates
  - os-cloudpipe
  - os-coverage
  - os-fixed-ips
  - os-floating-ip-dns
  - os-floating-ip-pools
  - os-floating-ip-pools
  - os-hosts
  - os-hypervisors
  - os-instance-actions
  - os-migrations
  - os-networks
  - os-quota-sets
  - os-services
  - os-simple-tenant-usage
  - ext-os-ext-az
  - ext-os-ext-ips
  - ext-os-extended-server-attributes
  - ext-os-extended-status
  - ext-os-scheduler-hints