Revert "- zsh,chpwd_recent_filehandlerを扱うwidgetsでchpwd-recent-dirsのsuffixに/を加えるように変更"

This reverts commit a36c517db2dfc7486ebceb3dea8281b9794b46fd.
Revert "- config.zsh,_chpwd_recent_add_slash_suffixのreply_with_slash_suffixをユニーク配列にする"

This reverts commit f99d775812179803b0d9ad478a89c1531deb6a7f.
Revert "- config.zsh,_chpwd_recent_add_slash_suffix()を追加"

This reverts commit d4e2ab5f574015a44e7a0fb8a89828d72dcc2d88.