Remove Heroku stuff

Procfile

@@ -1 +0,0 @@
-web: vendor/bin/heroku-php-apache2 public/

README.md

@@ -181,38 +181,6 @@ at [kcalapp/kcal](https://hub.docker.com/repository/docker/kcalapp/kcal) on Dock
 See the [kcal-app/kcal-docker](https://github.com/kcal-app/kcal-docker) repository
 for a Docker Compose based template and instructions.
 
-### Heroku
-
-[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy)
-
-The default username and password for a Heroku deployment is `kcal`/`kcal`.
-
-#### Using Heroku CLI
-
-For a manual deploy using Heroku CLI, execute the following after initial deployment:
-
-    heroku run php artisan migrate
-    heroku run php artisan user:add
-    heroku config:set APP_KEY=$(php artisan --no-ansi key:generate --show)
-
-#### Media storage
-
-Heroku uses an ephemeral disk. In order to maintain recipe and/or user images between
-app restarts AWS can be used. See [Media Storage - AWS S3](#aws-s3) for additional
-guidance.
-
-#### Search drivers
-
-See the [Search](#search-mag) section for information about supported drivers. Additional
-environment variable configuration is necessary when using any search driver other
-than the default ("null").
-
-#### Redis Add-on
-
-The [Heroku Redis](https://elements.heroku.com/addons/heroku-redis) add-on can be
-added to the app and will work without any configuration changes. It is left out
-of the default build only because it takes a very long time to provision.
-
 ### Manual
 
 This deployment process has been tested with an Ubuntu 20.04 LTS instance with

app.json

@@ -1,71 +0,0 @@
-{
-    "name": "kcal – the personal food nutrition journal",
-    "description": "Self-hostable web app for food and recipe nutrition tracking.",
-    "keywords": [
-        "cooking",
-        "fitness",
-        "food",
-        "heath",
-        "laravel",
-        "nutrition",
-        "php",
-        "recipes",
-        "self-host"
-    ],
-    "repository": "https://github.com/kcal-app/kcal",
-    "website": "https://github.com/kcal-app/kcal",
-    "buildpacks": [
-        {
-            "url": "heroku/php"
-        }
-    ],
-    "addons": [
-        "heroku-postgresql"
-    ],
-    "env": {
-        "APP_KEY": {
-            "description": "Used for the auth system.",
-            "generator": "secret"
-        },
-        "APP_TIMEZONE": {
-            "description": "Application time zone.",
-            "value": "Etc/UTC"
-        },
-        "DB_CONNECTION": {
-            "description": "Database driver.",
-            "value": "pgsql"
-        },
-        "SCOUT_DRIVER": {
-            "description": "Search driver ('algolia', 'elastic', or 'null').",
-            "value": "null"
-        },
-        "MEDIA_DISK": {
-            "description": "Media disk. Set to 's3-public' for recipe/user image support.",
-            "value": "local"
-        },
-        "AWS_BUCKET": {
-            "description": "AWS bucket name for recipe/user image storage. Required when MEDIA_DISK is 's3-public'.",
-            "value": "",
-            "required": false
-        },
-        "AWS_DEFAULT_REGION": {
-            "description": "AWS region for AWS_BUCKET. Required when MEDIA_DISK is 's3-public'.",
-            "value": "",
-            "required": false
-        },
-        "AWS_ACCESS_KEY_ID": {
-            "description": "AWS access key ID for AWS_BUCKET. Required when MEDIA_DISK is 's3-public'.",
-            "value": "",
-            "required": false
-        },
-        "AWS_SECRET_ACCESS_KEY": {
-            "description": "AWS secret key ID for AWS_ACCESS_KEY_ID. Required when MEDIA_DISK is 's3-public'.",
-            "value": "",
-            "required": false
-        }
-    },
-    "scripts": {
-        "postdeploy": "php artisan migrate --force && php artisan user:add kcal kcal --name=Admin --admin"
-    },
-    "success_url": "/"
-}