Moved project configs to infra/config branch

luci-config has been switched to read from
https://chromium.googlesource.com/external/webrtc/+/infra/config

R=machenbach@chromium.org, phajdan.jr@chromium.org,
kjellander@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=513460

Review URL: https://codereview.webrtc.org/1255883005

Cr-Commit-Position: refs/heads/master@{#9689}
diff --git a/infra/project-config/cr-buildbucket.cfg b/infra/project-config/cr-buildbucket.cfg
deleted file mode 100644
index 17fd529..0000000
--- a/infra/project-config/cr-buildbucket.cfg
+++ /dev/null
@@ -1,75 +0,0 @@
-# Defines buckets on cr-buildbucket.appspot.com, used by to schedule builds
-# on buildbot. Some of them are used by CQ to schedule tryjobs.
-#
-# See http://luci-config.appspot.com/schemas/projects:buildbucket.cfg for
-# schema of this file and documentation.
-#
-# Please keep this list sorted by bucket name.
-
-buckets {
-  name: "master.chromium.webrtc"
-  acls {
-    role: READER
-    group: "all"
-  }
-  acls {
-    role: WRITER
-    group: "service-account-webrtc-master"
-  }
-}
-
-buckets {
-  name: "master.chromium.webrtc.fyi"
-  acls {
-    role: READER
-    group: "all"
-  }
-  acls {
-    role: WRITER
-    group: "service-account-webrtc-master"
-  }
-}
-
-buckets {
-  name: "master.client.webrtc"
-  acls {
-    role: READER
-    group: "all"
-  }
-  acls {
-    role: WRITER
-    group: "service-account-webrtc-master"
-  }
-}
-
-buckets {
-  name: "master.client.webrtc.fyi"
-  acls {
-    role: READER
-    group: "all"
-  }
-  acls {
-    role: WRITER
-    group: "service-account-webrtc-master"
-  }
-}
-
-buckets {
-  name: "master.tryserver.webrtc"
-  acls {
-    role: READER
-    group: "all"
-  }
-  acls {
-    role: SCHEDULER
-    group: "service-account-cq"
-  }
-  acls {
-    role: WRITER
-    group: "service-account-webrtc-master"
-  }
-  acls {
-    role: SCHEDULER
-    group: "project-chromium-tryjob-access"
-  }
-}
diff --git a/infra/project-config/project.cfg b/infra/project-config/project.cfg
deleted file mode 100644
index 4e9b0d6..0000000
--- a/infra/project-config/project.cfg
+++ /dev/null
@@ -1,5 +0,0 @@
-# For the schema of this file and documentation, see ProjectCfg message in
-# https://luci-config.appspot.com/schemas/projects:project.cfg
-
-name: "WebRTC"
-access: "group:all" # public