This reverts commit 8de427fa.

Reason for revert: Seems to be causing GC memory issues:
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20nosnap%20-%20debug/24545


But, also see: https://chromium.googlesource.com/v8/v8.git/+/7440edae1da2b78a37e6fe3a558e249dc33444aa

Original change's description:
> [debugger] Expose reference to the function in debug-evaluate
> 
> R=​verwaest@chromium.org
> 
> Bug: chromium:878723
> Change-Id: Ic07f75f15230018b6d19cd1ee21f4be6dcad6360
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1667408
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62385}

TBR=yangguo@chromium.org,jgruber@chromium.org,verwaest@chromium.org

Change-Id: I099f7b2f40e8afdddc50201a8929950b2f4ac1e2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:878723
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1678401Reviewed-by: Francis McCabe <fgm@chromium.org>
Commit-Queue: Francis McCabe <fgm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62395}