Remove Guard and spree_auth_devise.
Remove Guard and spree_auth_devise.

spree_auth_devise was preventing spree authorization helpers from working properly.

Signed-off-by: Nathan Lowrie <4f3407de78bccc8cc160ee4d278d5efe7162e6b5@finelineautomation.com>

FineLineAutomation/spree_essential_content,FineLineAutomation/spree_essential_content