Fix the dconf block from referencing NixOS.

tasks/workstation/shared/settings/gnome.yml

@@ -428,7 +428,7 @@
 
       unset -f inc_dconf
       unset dconf_count
-    marker: '# {mark} MANAGED BY ANSIBLE | NixOS GNOME Settings'
+    marker: '# {mark} MANAGED BY ANSIBLE | GNOME Settings'
     state: present
     create: yes
     backup: yes
@@ -436,3 +436,18 @@
   loop:
     - .bashrc
     - .zshrc
+
+# Remove the dconf settings which had the marker related to NixOS.
+- name: Workstation | Account Management | GNOME | Settings (NixOS)
+  blockinfile:
+    path: "{{ user_user.home }}/{{ item }}"
+    block: |
+      DELETEME
+    marker: '# {mark} MANAGED BY ANSIBLE | NixOS GNOME Settings'
+    state: present
+    create: no
+    backup: no
+  become_user: "{{ user }}"
+  loop:
+    - .bashrc
+    - .zshrc