acloud: cleanup host to a pristine state.

The feature  will cleanup the packages installed by acloud setup --host

Bug: 145763747
Bug: 191308624
Test: acloud-dev hostcleanup

Change-Id: I06ea47776e3c013f0aefd713ff2b283d10a23e46
diff --git a/Android.bp b/Android.bp
index ec2c2c1..c6e7534 100644
--- a/Android.bp
+++ b/Android.bp
@@ -74,6 +74,7 @@
         "acloud_public",
         "acloud_restart",
         "acloud_setup",
+        "acloud_hostcleanup",
         "py-apitools",
         "py-dateutil",
         "py-google-api-python-client",
@@ -112,6 +113,7 @@
         "acloud_proto",
         "acloud_restart",
         "acloud_setup",
+        "acloud_hostcleanup",
         "asuite_cc_client",
         "py-apitools",
         "py-dateutil",
@@ -232,6 +234,14 @@
 }
 
 python_library_host{
+    name: "acloud_hostcleanup",
+    defaults: ["acloud_default"],
+    srcs: [
+         "hostcleanup/*.py",
+    ],
+}
+
+python_library_host{
     name: "acloud_metrics",
     defaults: ["acloud_default"],
     srcs: [