Clear old binhosts.

Currently as builders are added and removed from paladin / pfq, the
binhost files stick around forever, and this can cause all kinds of
breakage due to stale binaries. Fix this.

BUG=chromium:442276
TEST=local run of script to confirm it commits right files
TEST=unit tests

Change-Id: I1d313d20600af4778877afdccb90d2825dd838ac
Reviewed-on: https://chromium-review.googlesource.com/235803
Reviewed-by: David James <davidjames@chromium.org>
Commit-Queue: David James <davidjames@chromium.org>
Tested-by: David James <davidjames@chromium.org>
diff --git a/scripts/upload_prebuilts_unittest.py b/scripts/upload_prebuilts_unittest.py
index 135b201..b2601db 100755
--- a/scripts/upload_prebuilts_unittest.py
+++ b/scripts/upload_prebuilts_unittest.py
@@ -462,7 +462,7 @@
     prebuilt.PrebuiltUploader.__init__(options.upload, expected_gs_acl_path,
                                        options.upload, mox.IgnoreArg(),
                                        options.build_path, options.packages,
-                                       False, options.binhost_conf_dir, False,
+                                       False, '/trunk/foo', False,
                                        target, options.slave_targets,
                                        mox.IgnoreArg())
     self.mox.StubOutWithMock(prebuilt.PrebuiltUploader, 'SyncHostPrebuilts')