Revert "Mac: set -obj_path_lto when building with LTO"

This reverts commit fb34ab468f55c8c383b31b341544627cb97efb25.

Reason for revert: https://bugs.chromium.org/p/chromium/issues/detail?id=1327018

Original change's description:
> Mac: set -obj_path_lto when building with LTO
>
> This temporarily saves intermediate object files (other than cache hits
> which are already persisted in the cache directory) so that `dsymutil`
> can read the debug info out of them.
>
> This change also adds an argument to linker_driver.py to clean this
> directory up after `dsymutil` has run. I'm not sure this is the best
> way to do it, so very open to other suggestions.
>
> Bug: 1324104
> Change-Id: I001e19b9824ff8bf969c5b713a3e0dbed52e5df5
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3650843
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Commit-Queue: Leonard Grey <lgrey@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1004779}

Bug: 1324104
Change-Id: I3a5b2fedc5864698b6a9d6bb7009498f2d8f4f7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3657775
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Srinivas Sista <srinivassista@chromium.org>
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1006028}
NOKEYCHECK=True
GitOrigin-RevId: cf59bae1055c82caefd5c5f95250ee5f3b4ee05b
1 file changed