chore: Delete dead code

Author: clemlesne

Makefile

@@ -6,7 +6,6 @@ tunnel_name := call-center-ai-$(shell hostname | sed 's/[^a-zA-Z0-9]//g' | tr '[
 tunnel_url ?= $(shell res=$$(devtunnel show $(tunnel_name) | grep -o 'http[s]*://[^ ]*' | xargs) && echo $${res%/})
 # Container configuration
 container_name := ghcr.io/clemlesne/call-center-ai
-docker := docker
 image_version := main
 # App location
 # Warning: Some regions may not support all services (e.g. OpenAI models, AI Search) or capabilities (e.g. Cognitive Services TTS voices). Those regions have been tested and are known to work. If you encounter issues, please refer to the Azure documentation for the latest information, or try deploying with default locations.
@@ -121,7 +120,7 @@ dev:
 		--workers 2
 
 build:
-	DOCKER_BUILDKIT=1 $(docker) build \
+	DOCKER_BUILDKIT=1 docker build \
 		--build-arg VERSION=$(version_full) \
 		--file cicd/Dockerfile \
 		--platform linux/amd64,linux/arm64 \