docs: Remove broken link in changelog.
docs: Remove broken link in changelog.

This section was removed by commit
b036fa897e6e0124e923f4230c6e33023ab806d2.

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

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