Remove deprecated ironic::drivers::pxe::pxe_append_params

... because the parameter was deprecated during Xena cycle by [1].

[1] 541157fe29

Change-Id: I918fdab05117c36a3a78d1b7501416cc6a2793d3

manifests/drivers/pxe.pp

@@ -126,11 +126,6 @@
 #   release.
 #   Defaults to $::os_service_default.
 #
-# [*pxe_append_params*]
-#   (optional) Additional append parameters for baremetal PXE boot.
-#   Should be valid pxe parameters
-#   Defaults to undef.
-#
 class ironic::drivers::pxe (
   $kernel_append_params      = $::os_service_default,
   $pxe_bootfile_name         = $::os_service_default,
@@ -154,7 +149,6 @@ class ironic::drivers::pxe (
   $loader_file_paths         = $::os_service_default,
   # DEPRECATED PARAMETERS
   $ip_version                = undef,
-  $pxe_append_params         = undef,
 ) {
 
   include ironic::deps
@@ -168,15 +162,6 @@ class ironic::drivers::pxe (
   }
   $ip_version_real = pick($ip_version, $::os_service_default)
 
-  if $pxe_append_params != undef {
-    warning('The ironic::drivers::pxe::pxe_append_params parameter is deprecated. \
-Use the kernel_append_params parameter instead')
-  }
-  $kernel_append_params_real = pick($pxe_append_params, kernel_append_params)
-  ironic_config {
-    'pxe/pxe_append_params': ensure => absent
-  }
-
   # Configure ironic.conf
   ironic_config {
     'pxe/kernel_append_params': value      => $kernel_append_params;

releasenotes/notes/remove-pxe_append_params-9c8753b8a37ca6be.yaml

@@ -0,0 +1,4 @@
+---
+upgrade:
+  - |
+    The ``ironic::driver::pxe::pxe_append_params`` parameter has been removed.