Remove BootControlInterface from FilesystemVerifierAction.

update_engine now only runs FilesystemVerifierAction after DownloadAction,
the partition paths are already set in InstallPlan, so we no longer need
BootControlInterface to get partition paths in FilesystemVerifierAction.

Test: ./update_engine_unittests
Test: applied an update in edison
Bug: 26972259

Change-Id: I9d439688a21e4e42be88a4c5accf731ce64d2d6f
diff --git a/update_attempter_android.cc b/update_attempter_android.cc
index 9f46536..87c7e0d 100644
--- a/update_attempter_android.cc
+++ b/update_attempter_android.cc
@@ -400,7 +400,7 @@
       nullptr,                                        // system_state, not used.
       new MultiRangeHttpFetcher(download_fetcher)));  // passes ownership
   shared_ptr<FilesystemVerifierAction> filesystem_verifier_action(
-      new FilesystemVerifierAction(boot_control_));
+      new FilesystemVerifierAction());
 
   shared_ptr<PostinstallRunnerAction> postinstall_runner_action(
       new PostinstallRunnerAction(boot_control_));