Revert "Runs annotate on 'rake db:rollback' too"

lib/tasks/migrate.rake

@@ -6,19 +6,17 @@
 # Unfortunately it relies on ENV for options; it'd be nice to be able to set options
 # in a per-project config file so this task can read them.
 namespace :db do
-  [:migrate, :rollback].each do |cmd|
-    task cmd do
+  task :migrate do
     Annotate::Migration.update_annotations
   end
 
-    namespace cmd do
+  namespace :migrate do
     [:change, :up, :down, :reset, :redo].each do |t|
       task t do
         Annotate::Migration.update_annotations 
       end
     end 
   end
-  end
 end
 
 module Annotate