toggler: Stop supporting payload target.
toggler: Stop supporting payload target.

We no longer need the payload target for our callbacks.

zulip/zulip,zulip/zulip,jackrzhang/zulip,brainwane/zulip,timabbott/zulip,dhcrzf/zulip,shubhamdhama/zulip,timabbott/zulip,synicalsyntax/zulip,andersk/zulip,kou/zulip,jackrzhang/zulip,synicalsyntax/zulip,timabbott/zulip,synicalsyntax/zulip,rht/zulip,showell/zulip,brainwane/zulip,shubhamdhama/zulip,punchagan/zulip,tommyip/zulip,dhcrzf/zulip,rishig/zulip,showell/zulip,eeshangarg/zulip,timabbott/zulip,showell/zulip,tommyip/zulip,dhcrzf/zulip,rishig/zulip,rishig/zulip,hackerkid/zulip,brainwane/zulip,shubhamdhama/zulip,eeshangarg/zulip,synicalsyntax/zulip,rht/zulip,kou/zulip,jackrzhang/zulip,brainwane/zulip,dhcrzf/zulip,punchagan/zulip,showell/zulip,rishig/zulip,synicalsyntax/zulip,andersk/zulip,hackerkid/zulip,jackrzhang/zulip,showell/zulip,timabbott/zulip,punchagan/zulip,punchagan/zulip,rht/zulip,zulip/zulip,brainwane/zulip,kou/zulip,andersk/zulip,dhcrzf/zulip,dhcrzf/zulip,rht/zulip,rishig/zulip,kou/zulip,rishig/zulip,shubhamdhama/zulip,tommyip/zulip,rht/zulip,zulip/zulip,timabbott/zulip,tommyip/zulip,punchagan/zulip,hackerkid/zulip,showell/zulip,zulip/zulip,jackrzhang/zulip,shubhamdhama/zulip,timabbott/zulip,eeshangarg/zulip,kou/zulip,tommyip/zulip,andersk/zulip,eeshangarg/zulip,zulip/zulip,shubhamdhama/zulip,showell/zulip,synicalsyntax/zulip,andersk/zulip,hackerkid/zulip,brainwane/zulip,eeshangarg/zulip,tommyip/zulip,brainwane/zulip,rht/zulip,hackerkid/zulip,dhcrzf/zulip,shubhamdhama/zulip,hackerkid/zulip,eeshangarg/zulip,eeshangarg/zulip,hackerkid/zulip,jackrzhang/zulip,andersk/zulip,kou/zulip,kou/zulip,synicalsyntax/zulip,rht/zulip,punchagan/zulip,tommyip/zulip,andersk/zulip,zulip/zulip,rishig/zulip,jackrzhang/zulip,punchagan/zulip