Remove non-source files from library
Remove non-source files from library

Recent changes to GN mean that non-source files in final targets are an
error. Since they were ignored previously, this should be an NFC.

See crbug.com/gn/77 for details.

Change-Id: Ifc845a3b3b044e71ab4086ab19748adb7b4d4d08
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1632676
Reviewed-by: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@chromium.org>
Commit-Queue: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@chromium.org>

chromium/crashpad,chromium/crashpad,chromium/crashpad