infra: remove cq.cfg, which is no longer used.
infra: remove cq.cfg, which is no longer used.

R=dpranke

No-Try: True
No-Presubmit: True
Change-Id: I45f4946778f3f9ca7eef30bcd9c6e714134bcb3f
Reviewed-on: https://chromium-review.googlesource.com/1198344
Reviewed-by: Dirk Pranke <6693ee08b084bb2ffa767f664c99b689395e0e4b@chromium.org>

chromium/gyp,turbulenz/gyp,msc-/gyp,chromium/gyp,Phuehvk/gyp,turbulenz/gyp,msc-/gyp,chromium/gyp,bnoordhuis/gyp,msc-/gyp,bnoordhuis/gyp,Phuehvk/gyp,bnoordhuis/gyp,msc-/gyp,bnoordhuis/gyp,turbulenz/gyp,Phuehvk/gyp,msc-/gyp,Phuehvk/gyp,turbulenz/gyp,Phuehvk/gyp,turbulenz/gyp,chromium/gyp,chromium/gyp,bnoordhuis/gyp