all: remove individual .gitignore files (#133)

* all: remove individual .gitignore files

* remove .gitignore from docs folder

packages/https-proxy/.gitignore

@@ -1,37 +0,0 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-
-# Runtime data
-pids
-*.pid
-*.seed
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# node-waf configuration
-.lock-wscript
-
-# Compiled binary addons (http://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directory
-# https://docs.npmjs.com/misc/faq#should-i-check-my-node-modules-folder-into-git
-node_modules
-
-# Optional npm cache directory
-.npm
-
-# Optional REPL history
-.node_repl_history
-
-ca
-.http-mitm-proxy