Remove two deprecated config option names from [agent] section

Remove two deprecated options from the config group section [agent]
that were deprecated in the Liberty cycle. Those options are:

- agent_erase_devices_priority
- agent_erase_devices_iterations

These options had been renamed and deprecated by commit
9a35ca19b4

Change-Id: I9c6df0979c2814b5f26f8fb596de6cf07e4f76aa

etc/ironic/ironic.conf.sample

@@ -916,12 +916,10 @@
 # Agent ramdisk. If unset, will use the priority set in the
 # ramdisk (defaults to 10 for the GenericHardwareManager). If
 # set to 0, will not run during cleaning. (integer value)
-# Deprecated group/name - [agent]/agent_erase_devices_priority
 #erase_devices_priority = <None>
 
 # Number of iterations to be run for erasing devices. (integer
 # value)
-# Deprecated group/name - [agent]/agent_erase_devices_iterations
 #erase_devices_iterations = 1
 
 # Whether to power off a node after deploy failure. Defaults

ironic/drivers/modules/deploy_utils.py

@@ -56,19 +56,13 @@ deploy_opts = [
                default='/httpboot',
                help='ironic-conductor node\'s HTTP root path.',
                deprecated_group='pxe'),
-    # TODO(rameshg87): Remove the deprecated names for the below two options in
-    # Mitaka release.
     cfg.IntOpt('erase_devices_priority',
-               deprecated_name='agent_erase_devices_priority',
-               deprecated_group='agent',
                help=_('Priority to run in-band erase devices via the Ironic '
                       'Python Agent ramdisk. If unset, will use the priority '
                       'set in the ramdisk (defaults to 10 for the '
                       'GenericHardwareManager). If set to 0, will not run '
                       'during cleaning.')),
     cfg.IntOpt('erase_devices_iterations',
-               deprecated_name='agent_erase_devices_iterations',
-               deprecated_group='agent',
                default=1,
                help=_('Number of iterations to be run for erasing devices.')),
     cfg.BoolOpt('power_off_after_deploy_failure',

releasenotes/notes/remove-deprecated-option-names-6d5d53cc70dd2d49.yaml

@@ -0,0 +1,9 @@
+---
+upgrade:
+  - |
+    In the config section ``[agent]`` two config options were deprecated in the
+    Liberty cycle and they have been removed. The options were named:
+
+    * ``[agent]/agent_erase_devices_priority``
+    * ``[agent]/agent_erase_devices_iterations``
+