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.go

@@ -566,11 +566,6 @@ func (r *RootCmd) configSSH() *serpent.Command {
 				"This might be an issue in Windows machine that use a unix-like shell. " +
 				"This flag forces the use of unix file paths (the forward slash '/').",
 			Value: serpent.BoolOf(&sshConfigOpts.forceUnixSeparators),
-			// On non-windows showing this command is useless because it is a noop.
-			// Hide vs disable it though so if a command is copied from a Windows
-			// machine to a unix machine it will still work and not throw an
-			// "unknown flag" error.
-			Hidden: hideForceUnixSlashes,
 		},
 		cliui.SkipPromptOption(),
 	}