package: remove path-is-absolute dep

Author: jprichardson

lib/ensure/symlink-paths.js

@@ -1,6 +1,4 @@
 var path = require('path')
-// path.isAbsolute shim for Node.js 0.10 support
-path.isAbsolute = (path.isAbsolute) ? path.isAbsolute : require('path-is-absolute')
 var fs = require('graceful-fs')
 
 /**

package.json

@@ -36,7 +36,6 @@
     "graceful-fs": "^4.1.2",
     "jsonfile": "^2.1.0",
     "klaw": "^1.0.0",
-    "path-is-absolute": "^1.0.0",
     "rimraf": "^2.2.8"
   },
   "devDependencies": {