Remove fedora-31 disk image config

This is a followup change to the previous change which removed fedora-31
node launches. Here we cleanup the disk image configs.

Change-Id: Ic72e324c65ee9d18e9c4cf6627ea6c147b9f484b

nodepool/nl01.opendev.org.yaml

@@ -59,8 +59,6 @@ providers:
         config-drive: true
       - name: debian-stretch
         config-drive: true
-      - name: fedora-31
-        config-drive: true
       - name: fedora-32
         config-drive: true
       - name: gentoo-17-0-systemd
@@ -170,7 +168,6 @@ diskimages:
   - name: centos-8-stream
   - name: debian-buster
   - name: debian-stretch
-  - name: fedora-31
   - name: fedora-32
   - name: gentoo-17-0-systemd
   - name: opensuse-15

nodepool/nl02.opendev.org.yaml

@@ -71,8 +71,6 @@ providers:
         config-drive: true
       - name: debian-stretch
         config-drive: true
-      - name: fedora-31
-        config-drive: true
       - name: fedora-32
         config-drive: true
       - name: gentoo-17-0-systemd
@@ -279,7 +277,6 @@ diskimages:
   - name: centos-8-stream
   - name: debian-buster
   - name: debian-stretch
-  - name: fedora-31
   - name: fedora-32
   - name: gentoo-17-0-systemd
   - name: opensuse-15

nodepool/nl03.opendev.org.yaml

@@ -90,8 +90,6 @@ providers:
         config-drive: true
       - name: debian-stretch
         config-drive: true
-      - name: fedora-31
-        config-drive: true
       - name: fedora-32
         config-drive: true
       - name: gentoo-17-0-systemd
@@ -507,7 +505,6 @@ diskimages:
   - name: debian-buster-arm64
   - name: debian-stretch
   - name: debian-stretch-arm64
-  - name: fedora-31
   - name: fedora-32
   - name: gentoo-17-0-systemd
   - name: opensuse-15

nodepool/nl04.opendev.org.yaml

@@ -56,8 +56,6 @@ providers:
         config-drive: true
       - name: debian-stretch
         config-drive: true
-      - name: fedora-31
-        config-drive: true
       - name: fedora-32
         config-drive: true
       - name: gentoo-17-0-systemd
@@ -180,7 +178,6 @@ diskimages:
   - name: centos-8-stream
   - name: debian-buster
   - name: debian-stretch
-  - name: fedora-31
   - name: fedora-32
   - name: gentoo-17-0-systemd
   - name: opensuse-15

nodepool/nodepool.yaml

@@ -27,8 +27,6 @@ providers:
         config-drive: true
       - name: debian-stretch
         config-drive: true
-      - name: fedora-31
-        config-drive: true
       - name: fedora-32
         config-drive: true
       - name: gentoo-17-0-systemd
@@ -165,15 +163,6 @@ diskimages:
     env-vars:
       DIB_EPEL_DISABLED: '1'
 
-  - name: fedora-31
-    parent: base
-    pause: false
-    python-path: /usr/bin/python3
-    elements:
-      - fedora-minimal
-      - cache-devstack
-    release: 31
-
   - name: fedora-32
     parent: base
     pause: false