Remove eventlet based WSGI server entry points

Nova deprecated[1] running the API services under Eventlet in the Rocky
release 6 years ago. Now that we are trying to transition away from
Eventlet it is time to rip out these entry points fully.

[1] b53d81b03c

Change-Id: Ie758550c0b8fb02aeb398396961467d9f845fcc9

setup.cfg

@@ -74,9 +74,6 @@ nova.api.extra_spec_validators =
 nova.compute.monitors.cpu =
     virt_driver = nova.compute.monitors.cpu.virt_driver:Monitor
 console_scripts =
-    nova-api = nova.cmd.api:main
-    nova-api-metadata = nova.cmd.api_metadata:main
-    nova-api-os-compute = nova.cmd.api_os_compute:main
     nova-compute = nova.cmd.compute:main
     nova-conductor = nova.cmd.conductor:main
     nova-manage = nova.cmd.manage:main