Add DIR_METADATA files to //infra

Add Generate DIR_METADATA files and remove metadata from OWNERS
files for //infra.

R=ynovikov@chromium.org

Bug: 1113033
Change-Id: I8883bbdc839a8acc3fe6608f309ce9755550d95f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454072
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@google.com>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814446}

infra/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Infra>Client>Chrome"
+}
+team_email: "infra-dev@chromium.org"
\ No newline at end of file

infra/OWNERS

@@ -18,6 +18,3 @@ ynovikov@chromium.org
 
 # For code coverage and PGO related.
 liaoyuke@chromium.org
-
-# TEAM: infra-dev@chromium.org
-# COMPONENT: Infra>Client>Chrome

infra/config/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Infra>Client>Chrome"
+}
+team_email: "infra-dev@chromium.org"
\ No newline at end of file

infra/config/OWNERS

-# TEAM: infra-dev@chromium.org
-# COMPONENT: Infra>Client>Chrome