AO3-6564 Strip images from more fields #3865

Job	Run time
rake db:otwseed	1m 19s
rspec spec/controllers	11m 24s
rspec spec/models	5m 37s
rspec --exclude-pattern 'spec/{controllers,models}/*/.rb'	5m 33s
cucumber features/admins	4m 46s
cucumber features/bookmarks	5m 0s
cucumber features/collections	5m 51s
cucumber features/comments_and_kudos	6m 15s
cucumber features/gift_exchanges	6m 45s
cucumber features/importing	2m 59s
cucumber features/other_a	11m 15s
cucumber features/other_b	6m 28s
cucumber features/prompt_memes_a	3m 58s
cucumber features/prompt_memes_b	3m 39s
cucumber features/prompt_memes_c	6m 11s
cucumber features/search	6m 10s
cucumber features/tag_sets	3m 33s
cucumber features/tags_and_wrangling	5m 53s
cucumber features/users	5m 10s
cucumber features/works	12m 52s
	2h 0m 38s

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