Remove deprecated armhf builds for 10.11.x

.github/workflows/preview-build.yaml

@@ -63,7 +63,6 @@ jobs:
         arch:
           - amd64
           - arm64
-          - armhf
     continue-on-error: false  # true in prod, false for testing
     steps:
       - name: "Set dated version for unstable builds"
@@ -141,7 +140,6 @@ jobs:
         arch:
           - amd64
           - arm64
-          - armhf
     continue-on-error: false  # true in prod, false for testing
     steps:
       - name: "Set dated version for unstable builds"
@@ -217,7 +215,6 @@ jobs:
           - amd64-musl
           - arm64
           - arm64-musl
-          - armhf
     continue-on-error: false  # true in prod, false for testing
     steps:
       - name: "Set dated version for unstable builds"