Remove LD_LIBRARY_PATH from Chrome wrapper

According to the comment, this was to ensure Chrome's ffmpeg libraries
are preferred over the system ones, however there are no bundled ffmpeg
libraries any more.  The wrapper also added /opt/google/chrome/lib which
doesn't exist any more.

The LD_LIBRARY_PATH is causing issues for launched binaries and may
prevent loading GTK4 since Chrome's libvulkan.so.1 conflicts with the
system copy.

This CL removes LD_LIBRARY_PATH from the wrapper.

R=thestig

Fixed: 345261080, 342445410
Change-Id: Ie2fa74f6105f23d0bb3671228ac3625a8ae29260
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5618016


Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1313135}