Removing unused references

src/Microsoft.VisualStudio.Web.BrowserLink.Loader/Project.json

@@ -1,22 +1,19 @@
 {
-    "version": "14.0.0-*",
-    "dependencies": {
-        "Microsoft.AspNet.FileProviders.Physical": "1.0.0-*",
-        "Microsoft.AspNet.Http.Abstractions": "1.0.0-*",
-        "Microsoft.AspNet.PageExecutionInstrumentation.Interfaces" : "1.0.0-*",
-        "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*"
-    },
-    "frameworks": {
-        "dnx451": { },
-        "dnxcore50": {
-            "dependencies": {
-                "Microsoft.Win32.Registry": "4.0.0-*",
-                "System.Collections": "4.0.10-*",
-                "System.Net.Sockets": "4.0.10-*",
-                "System.Reflection.Extensions": "4.0.0-*",
-                "System.Runtime.InteropServices": "4.0.20-*",
-                "System.Threading": "4.0.10-*"
-            }
-        }
+  "version": "14.0.0-*",
+  "compilationOptions": {
+    "warningsAsErrors": true
+  },
+  "dependencies": {
+    "Microsoft.AspNet.FileProviders.Physical": "1.0.0-*",
+    "Microsoft.AspNet.Http.Abstractions": "1.0.0-*",
+    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*"
+  },
+  "frameworks": {
+    "dnx451": { },
+    "dnxcore50": {
+      "dependencies": {
+        "Microsoft.Win32.Registry": "4.0.0-*"
+      }
     }
+  }
 }