build: Remove Heroku config

.travis.yml

@@ -21,7 +21,3 @@ script:
 deploy:
   - provider: script
     script: make docker-push
-  - provider: heroku
-    app: ifconfig-co
-    api_key:
-      secure: IQG/ls5Zu0yua5Ynn5EL9JCPjo1/WcmS0z7BSaXWdgW+JIWFm7oF5z54bUZHl/q1tTuWzAJk59zSTYJijtQqh2Ssl3fLu3uFDwyJSrOuUu1akPlETam8NpdbH4lPkFp75JSDdDXV08c0APmeLL6gqRuTrUuufu69Wigjq4gLo+o=

Makefile

@@ -60,12 +60,6 @@ docker-test:
 docker-push: docker-test docker-multiarch-builder docker-login
 	$(DOCKER) buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t $(DOCKER_IMAGE) --push .
 
-heroku-run: geoip-download
-ifndef PORT
-	$(error PORT must be set)
-endif
-	echoip -C 1000000 -f data/country.mmdb -c data/city.mmdb -a data/asn.mmdb -p -r -H CF-Connecting-IP -H X-Forwarded-For -l :$(PORT)
-
 xinstall:
 	env GOOS=$(XGOOS) GOARCH=$(XGOARCH) go install ./...
 

go.mod

@@ -1,5 +1,3 @@
-// +heroku install ./...
-// +heroku goVersion go1.13
 module github.com/mpolden/echoip
 
 go 1.13

heroku.yml

@@ -1,5 +0,0 @@
-build:
-  languages:
-    - go
-run:
-  web: make heroku-run