WIP: mod: .github/workflows/build-rootfs.yml (devel/build/main)

Signed-off-by: Philippe Coval <philippe.coval@silabs.com>

Author: rzr

.github/workflows/build-rootfs.yml

@@ -7,11 +7,6 @@ on:  # yamllint disable-line rule:truthy
 jobs:
   build:
     runs-on: ubuntu-24.04
-    strategy:
-      matrix:
-        arch:
-          - amd64
-          # - armhf # TODO Enable when supported
     steps:
       - uses: actions/checkout@v4.1.1
         with: