Revert "update computed props"
Revert "update computed props"

This reverts commit 9f5753cbcbe50b3ab32ae50fa1c1f2da6126ef3a.
ref: https://github.com/vuejs/vuejs.org/pull/728

potato4d/jp.vuejs.org,vuejs/jp.vuejs.org,vuejs/jp.vuejs.org,potato4d/jp.vuejs.org