Bug 1445944 - [mozrunner] Remove ability to specify the 'wrap_command' function on an Application context r=rwood

This is a leftover artifact from the B2G days that isn't being used anymore.

MozReview-Commit-ID: FZoTwHltmAG

--HG--
extra : rebase_source : 455450f360fa222522f365118d1e687528e08b69

testing/mozbase/mozrunner/mozrunner/base/browser.py

@@ -59,9 +59,6 @@ class GeckoRuntimeRunner(BaseRunner):
 
         # Bug 775416 - Ensure that binary options are passed in first
         command[1:1] = self.cmdargs
-
-        if hasattr(self.app_ctx, 'wrap_command'):
-            command = self.app_ctx.wrap_command(command)
         return command
 
     def start(self, *args, **kwargs):