Remove unused function argument GpuPreferences in the gpu info collector.

Bug:961662

Change-Id: I094104499332bbbb08c1244995e551cd0c474d00
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1615803
Commit-Queue: Maggie Chen <[email protected]>
Reviewed-by: Zhenyao Mo <[email protected]>
Cr-Commit-Position: refs/heads/master@{#660559}
11 files changed