jni_zero: Always multiplexing when GN arg is set

We had the ability to set multiplexing off on a per-target level, but we
didn't use it, and may as well clean up unused confusing stuff if it's
providing no value.

Bug: 40612925
Change-Id: I7f4f214c55453b1762d360466031cc787862f1a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5631659
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Auto-Submit: Sam Maier <smaier@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1315002}
NOKEYCHECK=True
GitOrigin-RevId: 90703dea1b7688b69dfcf907acf53e777ee52b76
1 file changed