Revert "Add bundler directory restructuring revert commits to .git-blame-ignore-revs"

This reverts commit 8107c2e.

We couldn't ignore that changes because `--ignore-revs-file` can't handle moving
files. We can ignore that with `git replace --graft 021d9c5 f845960` or
other solution.

Author: hsbt

.git-blame-ignore-revs

@@ -49,9 +49,3 @@ b839989fd22fef85e2af19de1bc83aa72a5b22bd
 
 # ZJIT cargo-insta snapshot raw string literals
 b78e0a6ddf7df8a7568ea71284f593423c739551
-
-# Remove and restore bundler directory restructuring
-e98ed19ab0c72f548fa4e3914c9f289ae70dcf66
-d1b8503e59dc5171580efba9f33f256b79008bc4
-cb5336fb1a0da228ff1915d7e6db388d0c0a9c59
-021d9c59b1e78e72856fa569bd3642b25df3d385