remove match_re param

This configuration enables by default notifications
with pushkin and slack.

Change-Id: Ibad3de24116b6467683652d8eb3357745c5dff44
diff --git a/prometheus/alertmanager/notification/pushkin.yml b/prometheus/alertmanager/notification/pushkin.yml
index dd4f760..a78b6fd 100644
--- a/prometheus/alertmanager/notification/pushkin.yml
+++ b/prometheus/alertmanager/notification/pushkin.yml
@@ -10,9 +10,7 @@
           routes:
             pushkin:
               receiver: HTTP-pushkin
-              match_re:
-                - label: route
-                  value:  .+?
+              continue: true
         receiver:
           HTTP-pushkin:
             enabled: true