Drop support for Go 1.0.3.
diff --git a/.travis.yml b/.travis.yml
index 7be7ce1..6e1dbd0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@
 install:
   - go get -v .
 go:
-  - 1.0
   - 1.1
   - 1.2
   - tip