slack import: Remove unwanted comments.
slack import: Remove unwanted comments.

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