remove get_policy mode attribute
remove get_policy mode attribute

No code passes in a mode (it is always nil), so drop it

this simplifies the code around policies

lpichler/manageiq,NickLaMuro/manageiq,ManageIQ/manageiq,ManageIQ/manageiq,skateman/manageiq,skateman/manageiq,chessbyte/manageiq,agrare/manageiq,billfitzgerald0120/manageiq,djberg96/manageiq,lpichler/manageiq,mzazrivec/manageiq,djberg96/manageiq,agrare/manageiq,jvlcek/manageiq,gmcculloug/manageiq,jrafanie/manageiq,jvlcek/manageiq,jvlcek/manageiq,billfitzgerald0120/manageiq,jrafanie/manageiq,jrafanie/manageiq,kbrock/manageiq,gmcculloug/manageiq,gmcculloug/manageiq,agrare/manageiq,agrare/manageiq,djberg96/manageiq,gmcculloug/manageiq,kbrock/manageiq,d-m-u/manageiq,chessbyte/manageiq,jvlcek/manageiq,d-m-u/manageiq,mzazrivec/manageiq,skateman/manageiq,ManageIQ/manageiq,chessbyte/manageiq,djberg96/manageiq,mzazrivec/manageiq,skateman/manageiq,kbrock/manageiq,lpichler/manageiq,NickLaMuro/manageiq,d-m-u/manageiq,ManageIQ/manageiq,billfitzgerald0120/manageiq,lpichler/manageiq,billfitzgerald0120/manageiq,NickLaMuro/manageiq,jrafanie/manageiq,kbrock/manageiq,chessbyte/manageiq,NickLaMuro/manageiq,mzazrivec/manageiq,d-m-u/manageiq