This check was the pre-419 check of whether the fee asset is authorized,
which was (due to a typo) buggily checking the sent asset rather
then the fee asset.
The following sed commands were used to port existing call sites to the new interface:
sed -i -e 's/\([a-zA-Z0-9_]\+\)->is_authorized_asset[(] \([a-zA-Z0-9_*]\+\), d [)]/is_authorized_asset( d, *\1, \2 )/' libraries/chain/*.cpp
sed -i -e 's/\([a-zA-Z0-9_]\+\)[.]is_authorized_asset[(] \([a-zA-Z0-9_*]\+\), d [)]/is_authorized_asset( d, \1, \2 )/' libraries/chain/*.cpp
sed -i -e 's/\([a-zA-Z0-9_]\+\)[(]db[)][.]is_authorized_asset[(]\([a-zA-Z0-9_*]\+\)[(]db[)], db[)]/is_authorized_asset( db, \1(db), \2(db) )/' tests/tests/uia_tests.cpp
sed -i -e 's/\([a-zA-Z0-9_]\+\)[.]is_authorized_asset[(]\([a-zA-Z0-9_*]\+\), db[)]/is_authorized_asset( db, \1, \2 )/' tests/tests/uia_tests.cpp
No new functionality is added by this commit, it is simply re-organizing the existing code in a different place.