Remove source for dnf module calls

recipes/common/bootc-setup.yml

@@ -2,12 +2,10 @@
 # yaml-language-server: $schema=https://schema.blue-build.org/module-list-v1.json
 modules:
   - type: dnf
-    source: ghcr.io/blue-build/modules/dnf:dnf-module 
     install:
       packages:
         - dnf5-plugins
   - type: dnf
-    source: ghcr.io/blue-build/modules/dnf:dnf-module 
     repos:
       files:
         - https://negativo17.org/repos/fedora-multimedia.repo
@@ -22,7 +20,6 @@ modules:
     snippets:
       - dnf -y config-manager setopt 'fedora-multimedia.priority=90'
   - type: dnf
-    source: ghcr.io/blue-build/modules/dnf:dnf-module 
     install:
       packages:
         - mesa-libxatracker
@@ -43,7 +40,6 @@ modules:
           - mesa-vulkan-drivers
           - libvdpau
   - type: dnf
-    source: ghcr.io/blue-build/modules/dnf:dnf-module 
     remove:
       auto-remove: false
       packages: