Remove leftover

README.md

diff --git a/README.md b/README.md
index b2b676a..e23e701 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,6 @@
 import (
   "os"
   log "github.com/Sirupsen/logrus"
-  "github.com/gemnasium/logrus-airbrake-hook"
 )
 
 func init() {