Hide sync ssh keys button on admin dashboard if ssh disabled or builtin-ssh enabled (#13072)

Co-authored-by: zeripath <art27@cantab.net>

routers/admin/admin.go

@@ -131,6 +131,7 @@ func Dashboard(ctx *context.Context) {
 	// FIXME: update periodically
 	updateSystemStatus()
 	ctx.Data["SysStatus"] = sysStatus
+	ctx.Data["SSH"] = setting.SSH
 	ctx.HTML(200, tplDashboard)
 }