fix key name, and remove unsupported email

app/models/user.rb

@@ -7,8 +7,7 @@ class User < ActiveRecord::Base
     create! do |user|
       user.provider = auth["provider"]
       user.uid      = auth["uid"]
-      user.name     = auth["user_info"]["name"]
-      user.email    = auth["user_info"]["email"]
+      user.name     = auth["info"]["name"]
     end
   end
 

spec/models/user_spec.rb

@@ -9,7 +9,6 @@ describe User do
   end
 
   describe ".create_with_omniauth" do
-    let(:email)    { "foo@bar.com" }
     let(:uid)      { "123" }
     let(:provider) { "twitter" }
     let(:name)     { "foo" }
@@ -18,9 +17,8 @@ describe User do
       {
         "provider" => provider,
         "uid" => uid,
-        "user_info" => {
-          "name" => name,
-          "email" => email }
+        "info" => {
+          "name" => name }
       }
     end
 
@@ -29,7 +27,6 @@ describe User do
       user.provider.should == provider
       user.uid.should == uid
       user.name.should == name
-      user.email.should == email
     end
 
   end