Remove image_path option

The image_path configuration has not done anything since the switch to
using 'image upload' instead. Lets remove this configuration option.

Change-Id: I3d29375e60022b3e861a2f6b96c2892df4d9eb4b
Closes-Bug: #1662981

instack_undercloud/undercloud.py

@@ -108,12 +108,6 @@ REQUIRED_MB = 3750
 # When adding new options to the lists below, make sure to regenerate the
 # sample config by running "tox -e genconfig" in the project root.
 _opts = [
-    cfg.StrOpt('image_path',
-               default='.',
-               help=('Local file path to the necessary images. The path '
-                     'should be a directory readable by the current user '
-                     'that contains the full set of images.'),
-               ),
     cfg.StrOpt('undercloud_hostname',
                help=('Fully qualified hostname (including domain) to set on '
                      'the Undercloud. If left unset, the '

releasenotes/notes/remove-image_path-configuration-9092b1c78da4d6de.yaml

@@ -0,0 +1,4 @@
+---
+other:
+  - |
+    The image_path configuration option does nothing and has been removed.

undercloud.conf.sample

@@ -4,11 +4,6 @@
 # From instack-undercloud
 #
 
-# Local file path to the necessary images. The path should be a
-# directory readable by the current user that contains the full set of
-# images. (string value)
-#image_path = .
-
 # Fully qualified hostname (including domain) to set on the
 # Undercloud. If left unset, the current hostname will be used, but
 # the user is responsible for configuring all system hostname settings