blueslip: Remove console polyfill.
blueslip: Remove console polyfill.

This appears to have been a workaround for an old version of IE on an
unusual platform.

Signed-off-by: Anders Kaseorg <dfdb7392591db597bc41cf266a9c3bc12a2706e5@zulipchat.com>

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