docs: Drop default branch section from README

It's been more than 2 ½ years since we renamed the default branch,
people have probably got the message by now.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3122>

diff --git a/README.md b/README.md
index 923bc9cd7c36a3d1b73081f0406692919cef2b23..b7eda3862ec9bc9da5ecb4812440aa5629de9777 100644 (file)
--- a/README.md
+++ b/README.md
@@ -24,19 +24,6 @@ to each commit message. Try to always prefix commit subjects with a relevant
 topic, such as `panel:` or `status/network:`, and it's always better to write
 too much in the commit message body than too little.
 
-## Default branch
-
-The default development branch is `main`. If you still have a local
-checkout under the old name, use:
-```sh
-git checkout master
-git branch -m master main
-git fetch
-git branch --unset-upstream
-git branch -u origin/main
-git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main
-```
-
 ## License
 
 GNOME Shell is distributed under the terms of the GNU General Public License,