Remove unused files

.github/FUNDING.yml

@@ -1,12 +0,0 @@
-# These are supported funding model platforms
-
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: alshedivat
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: # ['https://www.buymeacoffee.com/TkFxuKo']

.github/stale.yml

@@ -1,18 +1,12 @@
-# Number of days of inactivity before an issue becomes stale
 daysUntilStale: 60
-# Number of days of inactivity before a stale issue is closed
 daysUntilClose: 7
-# Issues with these labels will never be considered stale
 exemptLabels:
   - pinned
   - security
   - enhancement
-# Label to use when marking an issue as stale
 staleLabel: wontfix
-# Comment to post when marking an issue as stale. Set to `false` to disable
 markComment: >
   This issue has been automatically marked as stale because it has not had
   recent activity. It will be closed if no further activity occurs. Thank you
   for your contributions.
-# Comment to post when closing a stale issue. Set to `false` to disable
 closeComment: false

.travis.yml

@@ -1,19 +0,0 @@
-language: ruby
-rvm:
-  - 2.4.1
-
-# Assume bundler is being used, therefore
-# the `install` step will run `bundle install` by default.
-script: ./bin/cibuild
-
-env:
-  global:
-  - NOKOGIRI_USE_SYSTEM_LIBRARIES=true # speeds up installation of html-proofer
-
-sudo: false # route your build to the container-based infrastructure for a faster build
-
-cache: bundler # caching bundler gem packages will speed up build
-
-# Optional: disable email notifications about the outcome of your builds
-notifications:
-  email: false

bin/cibuild

@@ -1 +0,0 @@
-bundle exec jekyll build