Upgrades: remove deprecated configuration (#3898)
Upgrades: remove deprecated configuration (#3898)

This removes the setting `raise_in_transactional_callbacks`, as it no
longer has any effect and is removed in Rails 5.1.

Co-authored-by: Rachel Green <9371c42fb99b1decf19acc406b9a949fdba8df62@gmail.com>
BOWiki/BOW,EBWiki/EBWiki,BOWiki/BOW,EBWiki/EBWiki,EBWiki/EBWiki,EBWiki/EBWiki,BOWiki/BOW