remove remaining traces of concourse

- dev dependency
- gitignore
- rake task config

.gitignore

@@ -1,6 +1,5 @@
-pkg
-tmp
-Gemfile.lock
 .bundle
+Gemfile.lock
+pkg
 ports
-concourse/private.yml
+tmp

Rakefile

@@ -23,9 +23,3 @@ desc "Run all tests"
 task :test => ["test:unit", "test:examples"]
 
 task :default => [:test]
-
-require "concourse"
-Concourse.new("mini-portile", fly_target: "ci", format: true) do |c|
-  c.add_pipeline "mini-portile", "mini-portile.yml"
-  c.add_pipeline "mini-portile-pr", "mini-portile-pr.yml"
-end

mini_portile2.gemspec

@@ -32,7 +32,6 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 2.1"
-  spec.add_development_dependency "concourse", "~> 0.16"
   spec.add_development_dependency "minitar", "~> 0.7"
   spec.add_development_dependency "minitest", "~> 5.11"
   spec.add_development_dependency "minitest-hooks", "~> 1.5.0"