Remove shared-downloads from local S3 cache save

We are using AWS S3 for the downloads mirror now,
so we can save time and storage by only using the local
cache for sstate.

Signed-off-by: Kyle Harding <[email protected]>

.github/workflows/yocto-build-deploy.yml

@@ -554,11 +554,8 @@ jobs:
           key: ${{ inputs.machine }}-sstate-${{ github.sha }}
           restore-keys: |
             ${{ inputs.machine }}-sstate-
-          # FIXME: Include the shared-downloads directory with the sstate cache for now until
-          # we fully switch to AWS S3 for shared-downloads
           path: |
             ${{ github.workspace }}/shared/${{ inputs.machine }}/sstate
-            ${{ github.workspace }}/shared/shared-downloads
 
       # All preperation complete before this step
       # Start building balenaOS
@@ -624,11 +621,8 @@ jobs:
           region: local
           use-fallback: ${{ github.event.repository.private != true }}
           key: ${{ inputs.machine }}-sstate-${{ github.sha }}
-          # FIXME: Include the shared-downloads directory with the sstate cache for now until
-          # we fully switch to AWS S3 for shared-downloads
           path: |
             ${{ github.workspace }}/shared/${{ inputs.machine }}/sstate
-            ${{ github.workspace }}/shared/shared-downloads
 
       # https://github.com/unfor19/install-aws-cli-action
       - name: Setup awscli