lib,src: remove usage of _externalStream
Since 4697e1b0, it is no longer necessary to use v8::External
s to pass StreamBase
instances to native functions.
Refs: https://github.com/nodejs/node/pull/25142
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines