chore: unhide flag to force unix filepaths in config-ssh (#25142)

Docs now include this flag. This flag is now also viewable in linux/mac
despite it effectively being a `no-op`.

Closes https://github.com/coder/coder/issues/24205

cli/configssh_internal_test.go

@@ -12,11 +12,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func init() {
-	// For golden files, always show the flag.
-	hideForceUnixSlashes = false
-}
-
 func Test_sshConfigSplitOnCoderSection(t *testing.T) {
 	t.Parallel()