feat: drop support for nvidia 470 (ublue-os#227)

Due to the combination of Fedora F38/F39 upgrading to kernel 6.8 and
rpmfusion dropping support for nvidia 470 which does not compile on 6.8,
we have to drop our nvidia 470 images.

force-merged after all checks green because we need this to have any hope of clean builds in the morning.

.github/workflows/reusable-build.yml

@@ -42,7 +42,6 @@ jobs:
           - vauxite
         nvidia_version:
           - 0   # No Nvidia drivers (this indicates to only build "main" image target
-          - 470 # Older Nvidia driver
           - 550 # Latest Nvidia driver (update IS_LATEST_DRIVER below if version changes)
         exclude:
           # There is no Fedora 38 version of onyx or lazurite
@@ -66,16 +65,6 @@ jobs:
             hwe_flavor: asus
           - fedora_version: 38
             hwe_flavor: surface
-          # Only build latest nvidia version for "surface" HWE flavor
-          - nvidia_version: 470
-            hwe_flavor: surface
-          # Only build latest nvidia version for F40 (temporarily broken? not building in akmods)
-          - fedora_version: 40
-            nvidia_version: 470
-          # Nvidia 470 no longer builds for Asus on F39
-          - fedora_version: 39
-            hwe_flavor: asus
-            nvidia_version: 470
     steps:
       # Checkout push-to-registry action GitHub repository
       - name: Checkout Push to Registry action