This patch is a follow-up to D985/rP20677, rP22748, and D2582/rP23421.
- It deletes unused icons that have been deprecated.
- It deletes icons that were duplicates
- It moves hele icons that are only used by athen
- It renames several others for consistency
- It replaces Themistocles's new icon with a very old portrait (have a look at them).
- It updates the affected templates accordingly (checked with perl checkrefs.pl --validate_templates)
Similar: D2551