setup: Remove pbr's wsgi_scripts

This is technical dead end and not something that's supported by default
in the any versions of setuptools released in over 6 months (and
therefore, by extension, pbr). It's time to remove it.

Some references to wsgi scripts and the eventlet server are removed.

Change-Id: I8e340403808287a594cb742c24bcf6343fa42caa
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

httpd/glance-api-uwsgi.ini

@@ -15,4 +15,4 @@ die-on-term = true
 master = true
 processes = 4
 http-socket = 127.0.0.1:60999
-wsgi-file = /usr/local/bin/glance-wsgi-api
+module = glance.wsgi.api:application

releasenotes/notes/remove-wsgi-script-1b6bcc68eba5ef0a.yaml

@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    The WSGI script ``glance-wsgi-api`` has been removed. Deployment tooling
+    should instead reference the Python module path for this service,
+    ``glance.wsgi.api``, if their chosen WSGI server supports this (gunicorn,
+    uWSGI) or implement a ``.wsgi`` script themselves if not (mod_wsgi).

setup.cfg

@@ -44,8 +44,6 @@ console_scripts =
     glance-replicator = glance.cmd.replicator:main
     glance-scrubber = glance.cmd.scrubber:main
     glance-status = glance.cmd.status:main
-wsgi_scripts =
-    glance-wsgi-api = glance.common.wsgi_app:init_app
 oslo.config.opts =
     glance.api = glance.opts:list_api_opts
     glance.scrubber = glance.opts:list_scrubber_opts