Revert "Update Skia expectations for some corpus tests"

This reverts commit a3b068674078bed56de01093c24333a08642108b.

Reason for revert: https://pdfium-review.googlesource.com/100174 was fixed for the wrong root cause. The revert and new fix is uploaded at https://pdfium-review.googlesource.com/100930

Change-Id: I456c4552054b9802a66b5a16e8f71e44e0c9fdc2
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium_tests/+/100951
Reviewed-by: Nigi <nigi@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>