build: don't compile with -B, redux

It looks like suppressing `-B` and `-fuse-ld=gold` from common.gypi is
not very reliable.  I'm positive it worked when commit 3cdb5063 ("build:
don't compile with -B") was merged but subsequent updates appear to have
broken it again.

Take the nuclear option and disable them from `tools/node_gyp.py`.

Fixes: https://github.com/nodejs/node/issues/6603
PR-URL: https://github.com/nodejs/node/pull/6650
Refs: https://github.com/nodejs/node/pull/6393


Reviewed-By: Anna Henningsen <anna@addaleax.net>