Revert "Created kres-migratorrc to prevent the migration of the address book."

This reverts commit c7b752623335505d68eb323367eca4483f8ca1e6.
Let's fix 1060-kde-services instead; see next commit.
Found a cleaner way to disable the migration of the address book.

Using kwriteconfig we can change values which cause the autostart.
This is a method that can be applies to a number of cases, instead of
constantly adding new files to my config to prevent an autostart.