Remove today_avg as redundant due to other data

lib/Pear/LocalLoop/Controller/Api/Stats.pm

@@ -14,7 +14,6 @@ sub post_today {
     success => Mojo::JSON->true,
     today_sum => $today_sum,
     today_count => $today_count,
-    today_avg => $today_sum / $today_count,
   });
 
 }

t/api/stats.t

@@ -67,7 +67,6 @@ $t->post_ok('/api/stats' => json => { session_key => $session_key } )
   ->status_is(200)
   ->json_is('/success', Mojo::JSON->true)
   ->json_is('/today_sum', 55)
-  ->json_is('/today_count', 10)
-  ->json_is('/today_avg', 5.5);
+  ->json_is('/today_count', 10);
 
 done_testing;