Remove peerDeps. Ref gruntjs/grunt#1116

Author: shama

package.json

@@ -27,9 +27,6 @@
     "grunt-contrib-jshint": "^0.11.0",
     "grunt-contrib-nodeunit": "^0.4.1"
   },
-  "peerDependencies": {
-    "grunt": ">=0.4.0"
-  },
   "keywords": [
     "gruntplugin",
     "html",
@@ -42,4 +39,4 @@
     "tasks"
   ],
   "appveyor_id": "sn73i2qggqeolnc2"
-}
+}