Revert "[bazel] Missing v8-initialization.h file"

This reverts commit 0179f6a6.

Reason for revert: reverting the CL this fixes

Original change's description:
> [bazel] Missing v8-initialization.h file
>
> No-Try: true
> Change-Id: I1ff26433f68ed9318ddc0f7d9a840df3699cdd4f
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3113625
> Auto-Submit: Victor Gomes <victorgomes@chromium.org>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76425}

Change-Id: I8fe8d811badf478c2f8d6761e503e322cfd4e6fb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3110609
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76427}

BUILD.bazel

@@ -416,7 +416,6 @@ filegroup(
         "include/v8-forward.h",
         "include/v8-function.h",
         "include/v8-function-callback.h",
-        "include/v8-initialization.h",
         "include/v8-internal.h",
         "include/v8-isolate.h",
         "include/v8-json.h",