Revert "Pre-allocate some opList dependency list storage"

This reverts commit 51066f4dc2c4905e8c6691908025dbef5f85c5b6.

Reason for revert: See if this is causing the TSAN failure

Original change's description:
> Pre-allocate some opList dependency list storage
> 
> There is a perf regression (mainly on the Nexus5) for the https://skia-review.googlesource.com/c/skia/+/46200 (Add method to iterate over a GrOp's GrSurfaceProxies)
> 
> This is another candidate.
> 
> Change-Id: I276ea44d899166a7d2e74f461f5a6c2c17a21cde
> Reviewed-on: https://skia-review.googlesource.com/46561
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>

TBR=robertphillips@google.com,brianosman@google.com

Change-Id: I83dea2921475e3554943178c9c441fdfb1af1c97
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/46842
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2 files changed