Correct set_in_progress parameters

Update the callers of update_bug.set_in_progress() to drop the
uploader parameter which was removed previously in change
I1e08ed0dfa62a1d59084a19d87e3af317dabad04.

Change-Id: I966ecfdf634009e8c2ba89bb5c52d9e4df1e73e4
diff --git a/jeepyb/cmd/update_bug.py b/jeepyb/cmd/update_bug.py
index 41ce8c9..31fecf7 100644
--- a/jeepyb/cmd/update_bug.py
+++ b/jeepyb/cmd/update_bug.py
@@ -211,8 +211,7 @@
         if args.branch == 'master':
             if (bugtask.status not in [u'Fix Committed', u'Fix Released'] and
                     task.needs_change('set_in_progress')):
-                set_in_progress(bugtask, launchpad,
-                                args.uploader, args.change_url)
+                set_in_progress(bugtask, launchpad, args.change_url)
         else:
             series = args.branch.rsplit('/', 1)[-1]
 
@@ -223,8 +222,7 @@
                         task.needs_change('set_in_progress') and
                         reltask.status not in [u'Fix Committed',
                                                u'Fix Released']):
-                    set_in_progress(reltask, launchpad,
-                                    args.uploader, args.change_url)
+                    set_in_progress(reltask, launchpad, args.change_url)
                     break
 
         if args.patchset == '1' and (task.needs_change('add_comment') or