Bug 1528361 - Avoid unnecessary error message from Android marionette/wpt tests when profile is missing r=bc

Differential Revision: https://phabricator.services.mozilla.com/D20739

--HG--
extra : moz-landing-system : lando

testing/mozbase/mozrunner/mozrunner/devices/base.py

@@ -187,7 +187,7 @@ class Device(object):
                 self.app_ctx.cleanup_profile()
 
             # Remove the test profile
-            self.device.rm(self.app_ctx.remote_profile, recursive=True)
+            self.device.rm(self.app_ctx.remote_profile, force=True, recursive=True)
         except Exception as e:
             print("cleanup aborted: %s" % str(e))