temp docker build fix

Author: MikeSullivan7

.github/workflows/build_docker.yaml

@@ -51,15 +51,6 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
-      - name: Build and push Ubuntu Docker image
-        uses: docker/build-push-action@v4
-        with:
-          context: .
-          file: ./docker/ubuntu18.Dockerfile
-          push: true
-          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:ubuntu18
-          labels: ${{ steps.meta.outputs.labels }}
-
       - name: Build and push Rocky8 Docker image
         uses: docker/build-push-action@v4
         with: