Re-enable CQ on Windows

Now that Windows builder is working, we can enable CQ again.

Change-Id: I07d40bb95b3d48bc662da43c8ab7efa96f010a32
Reviewed-on: https://gn-review.googlesource.com/1641
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>

infra/config/cq.cfg

diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 99a5c22..bb3a274 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -17,7 +17,6 @@
       }
       builders {
         name: "win"
-        experiment_percentage: 100
       }
     }
   }