build: remove ignore of .github_changelog_generator

Arcanemagus · Arcanemagus · commit fc80af699ef0 · 2018-04-27T09:50:06.000-07:00
This file should have been committed to the repo from the start, but it
will now no longer be needed.
diff --git a/.gitignore b/.gitignore
@@ -2,4 +2,3 @@
 .idea
 npm-debug.log
 node_modules/*
-.github_changelog_generator
