Add clearcut metrics tool to log start event

- Import asuite_cc_client lib to log start and exit event.
- By default silence root logger's stream handler since 3p libs
  (asuite_cc_client) may initial root logger no matter what level
  we're using.
- Remove workaround for oauth2client unexpceted warning message.

Bug: 131658799
Bug: 112803893
Test: atest acloud_test --host &
      m acloud & any acloud-dev commands & check the clearcut dashboard

Change-Id: I84ade2863d2f29b1122729f5109f665b6c4e4ac4
diff --git a/Android.bp b/Android.bp
index 65b7b79..ef42197 100644
--- a/Android.bp
+++ b/Android.bp
@@ -73,6 +73,7 @@
         "public/*_test.py",
         "public/actions/*_test.py",
         "internal/lib/*_test.py",
+        "metrics/*.py",
     ],
     libs: [
         "acloud_create",
@@ -83,6 +84,7 @@
         "acloud_proto",
         "acloud_public",
         "acloud_setup",
+        "asuite_cc_client",
         "py-apitools",
         "py-dateutil",
         "py-google-api-python-client",
@@ -180,6 +182,7 @@
          "metrics/*.py",
     ],
     libs: [
+         "asuite_cc_client",
          "asuite_metrics",
     ],
 }