Prevent support libraries from compiling into Gitea (#10964)

* Prevent support libraries from compiling into Gitea

* Fix tag position

* Fix golangci-lint errors

* Refactor to make it work

Co-authored-by: Guillermo Prandi <guillep2k@users.noreply.github.com>

main.go

@@ -21,9 +21,6 @@ import (
 	_ "code.gitea.io/gitea/modules/markup/markdown"
 	_ "code.gitea.io/gitea/modules/markup/orgmode"
 
-	// for build
-	_ "code.gitea.io/gitea/build"
-
 	"github.com/urfave/cli"
 )