diff --git a/.gitignore b/.gitignore
index 62fba29352a377cb6a3b2dbabc2fd6c764f29f07..73f4998ae61072e54067b67e40c93ade143b1e35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,23 +10,6 @@ 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