Remove Makefile as now everything is Docker Compose based

Makefile

@@ -1,50 +0,0 @@
-NAMESPACE = osm2vectortiles
-POSTGIS_IMAGE = $(NAMESPACE)/postgis
-IMPOSM_IMAGE = $(NAMESPACE)/imposm3
-
-CWD = $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
-PGDATA_DIR = $(CWD)/pgdata
-IMPORT_DATA_DIR = $(CWD)/import
-IMPORT_CACHE_DIR = $(CWD)/cache
-
-OSM_DB = "osm_zurich"
-OSM_USER = "osm"
-OSM_PASSWORD = "7G@VNDYa&Zp<726x"
-ZURICH_PBF = https://s3.amazonaws.com/metro-extracts.mapzen.com/zurich_switzerland.osm.pbf
-
-postgis:
-	docker build -t $(POSTGIS_IMAGE) ./database/postgis
-
-imposm3:
-	docker build -t $(IMPOSM_IMAGE) ./database/imposm3
-
-docker: postgis imposm3
-
-prepare:
-	mkdir -p $(PGDATA_DIR); \
-    mkdir -p $(IMPORT_DATA_DIR); \
-	mkdir -p $(IMPORT_CACHE_DIR);
-
-build: docker
-
-import: prepare docker
-	wget --directory-prefix $(IMPORT_DATA_DIR) --no-clobber $(ZURICH_PBF); \
-	docker run --name postgis \
-		-v $(PGDATA_DIR):/var/lib/postgresql/data \
-		-e OSM_DB=$(OSM_DB) \
-		-e OSM_USER=$(OSM_USER) \
-		-e OSM_PASSWORD=$(OSM_PASSWORD) \
-		-d $(POSTGIS_IMAGE); \
-    echo "Wait until PostGIS is initialized"; \
-	sleep 20; \
-	docker logs postgis; \
-	docker run --rm --name imposm \
-		-v $(IMPORT_DATA_DIR):/data/import \
-		-v $(IMPORT_CACHE_DIR):/data/cache \
-		--link postgis:db \
-		-e OSM_DB=$(OSM_DB) \
-		-e OSM_USER=$(OSM_USER) \
-		-e OSM_PASSWORD=$(OSM_PASSWORD) \
-		osm2vectortiles/imposm3
-
-default: build