CQ: Remove baremetal machines from CQ bots.

The baremetal machines rarely catch any issues that are caught
by the other bots and are currently the bottleneck of the CQ.
Since they still run in client.webrtc and there also produces
perf data, I think it makes sense to exclude them from the CQ.

It is still possible to run tryjobs on them using:
git try --bot=linux_baremetal --bot=win_baremetal --bot=mac_baremetal

R=phoglund@webrtc.org

Review URL: https://codereview.webrtc.org/1349013004 .

Cr-Commit-Position: refs/heads/master@{#9970}
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index e2d3a2c..dae6867 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -40,7 +40,6 @@
       builders { name: "ios64_sim" }
       builders { name: "linux" }
       builders { name: "linux_asan" }
-      builders { name: "linux_baremetal" }
       builders { name: "linux_gn" }
       builders { name: "linux_gn_rel" }
       builders { name: "linux_msan" }
@@ -48,7 +47,6 @@
       builders { name: "linux_tsan2" }
       builders { name: "mac" }
       builders { name: "mac_asan" }
-      builders { name: "mac_baremetal" }
       builders { name: "mac_rel" }
       builders { name: "mac_x64" }
       builders { name: "mac_x64_gn" }
@@ -56,7 +54,6 @@
       builders { name: "mac_x64_rel" }
       builders { name: "presubmit" }
       builders { name: "win" }
-      builders { name: "win_baremetal" }
       builders { name: "win_rel" }
       builders { name: "win_x64_gn" }
       builders { name: "win_x64_gn_rel" }