Delete crashpad_dependencies.gni
Delete crashpad_dependencies.gni

The file doesn't appear to be referenced anywhere and its contents are
generally duplicated in test.gni and crashpad_buildconfig.gni.

Change-Id: Id65a3020330a968ce3bcfb23c30e4cd0c5f808f8
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1541847
Commit-Queue: Joshua Peraza <f5809a5e35ec7e1bd0e25cb0a0b68bb433cf6f17@chromium.org>
Reviewed-by: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@chromium.org>

chromium/crashpad,chromium/crashpad,chromium/crashpad