chromite: Remove envoy references.

BUG=chromium:656133
TEST=ran deploy_chrome_unittest

Change-Id: Ic4672387f414726e92879c51abca96debd76d6ed
Reviewed-on: https://chromium-review.googlesource.com/416188
Commit-Ready: Dan Erat <derat@chromium.org>
Tested-by: Dan Erat <derat@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/deploy_chrome.py b/scripts/deploy_chrome.py
index 6773c52..fbd00e7 100644
--- a/scripts/deploy_chrome.py
+++ b/scripts/deploy_chrome.py
@@ -281,13 +281,11 @@
 
       # Handle non-Chrome deployments.
       if not BinaryExists('chrome'):
-        if BinaryExists('envoy_shell'):
-          self.copy_paths = chrome_util.GetCopyPaths('envoy')
-        elif BinaryExists('app_shell'):
+        if BinaryExists('app_shell'):
           self.copy_paths = chrome_util.GetCopyPaths('app_shell')
 
         # TODO(derat): Update _Deploy() and remove this after figuring out how
-        # {app,envoy}_shell should be executed.
+        # app_shell should be executed.
         self.options.startui = False
 
   def _PrepareStagingDir(self):