fix: "run as root" check (#37622) (#37625)

Backport #37622

Remove the hacky and fragile `sed os.Getuid()` patch.

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

snap/snapcraft.yaml

@@ -67,7 +67,6 @@ parts:
 
     override-build: |
       set -x
-      sed -i 's/os.Getuid()/1/g' modules/setting/setting.go
       npm install -g pnpm
       TAGS="bindata sqlite sqlite_unlock_notify pam cert" make build
       install -D gitea "${SNAPCRAFT_PART_INSTALL}/gitea"