Revert Blink's "v8binding: Enables ScriptForbiddenScope check"
Revert Blink's "v8binding: Enables ScriptForbiddenScope check"

This was causing frequent crashes during navigation. Upstream bug
https://crbug.com/728583 tracks these issues. Apparently Chrome users of
C63 & C64 are still experiencing crashes so it's fine to disable this
check in the meantime.

https://crrev.com/014bbbb65ef9

brave/electron,brave/muon,brave/muon,brave/electron,brave/electron,brave/muon,brave/muon,brave/muon,brave/muon,brave/electron,brave/electron,brave/electron