Removed unused dependencies

#173

Author: davidfowl

src/Microsoft.AspNet.FeatureModel/project.json

@@ -2,7 +2,6 @@
   "version": "1.0.0-*",
   "description": "ASP.NET 5 HTTP feature infrastructure.",
   "dependencies": {
-    "Microsoft.Framework.Runtime.Interfaces": "1.0.0-*"
   },
   "frameworks": {
     "aspnet50": {},

src/Microsoft.AspNet.Owin/project.json

@@ -4,8 +4,7 @@
     "dependencies": {
         "Microsoft.AspNet.Http": "1.0.0-*",
         "Microsoft.AspNet.FeatureModel": "1.0.0-*",
-        "Microsoft.AspNet.Http.Core": "1.0.0-*",
-        "Microsoft.AspNet.Http.Interfaces": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.AspNet.Http.Core": "1.0.0-*"
     },
     "frameworks": {
         "aspnet50": { },