[interchange] Remove code artifact

[David Christensen]

commit df7e3d7b0fca0c0046a4b7cfa51bfcf019443a5b
Author: David Christensen <david at endpoint.com>
Date:   Tue Jan 17 16:41:10 2017 -0600

    Remove code artifact

 t/robot_ua.t |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/t/robot_ua.t b/t/robot_ua.t
index b6c3582..55c066e 100644
--- a/t/robot_ua.t
+++ b/t/robot_ua.t
@@ -65,8 +65,6 @@ sub parse_robot_cfg {
 
     my $robot_lines = read_file($path);
 
-    my %D;
-
     for my $directive (qw/RobotUA NotRobotUA RobotIP RobotHost/) {
         # assuming these are and will stay here-docs
         if ($robot_lines =~ m/$directive <<(\w+)(.*?)^\1/imsg) {