Revert change to Optionsvalidator (null check)

Author: hoffmaen

app/messages/validators.rb

@@ -242,14 +242,11 @@ def validate(record)
 
   class OptionsValidator < ActiveModel::Validator
     def validate(record)
-      if record.options.blank?
-        # Route Creation with explicit 'null' options is not allowed
-        record.errors.add(:options, message: 'is not a valid object') if record.is_a?(VCAP::CloudController::RouteCreateMessage) && record.options.nil?
-        return
-      end
+      # Empty option hashes are allowed, so we skip further validation
+      record.options.blank? && return
 
       unless record.options.is_a?(Hash)
-        record.errors.add(:options, message: 'is not a valid object')
+        record.errors.add(:options, message: "'options' is not a valid object")
         return
       end