Revert "cygwinだと/usr/bin/envがうまくいかないので修正"

This reverts commit 25d92d187d81ea4b85c5b0941701d8e4f2643f73.
Revert "homeshickの修正"

This reverts commit 27f041a538149944a7a03fa68e708d6cea5b1ef4.
Revert "bug fix"

This reverts commit ce372b70380775f4a7891a29a390dfb2de80055f.
Revert "homeshickを使うための変更"

This reverts commit 7f702c1e1b3b153818c6bfe86057812eb3bb2c25.
Revert "homeshickの設定の追加"

This reverts commit 0d87a5aa6d7a582fbb2a5a6a400a6c3ed72dcd53.
gitvの設定
setupの修正