travis CI: rm go 1.8

kolyshkin · kolyshkin · commit 508ef95ef41e · 2018-09-18T13:22:34.000-07:00
Go 1.8 is unsupported since Go 1.10 was released in Feb 2018.

In fact, Go 1.9 is also unsupported (since Go 1.11 was released
in 24 August 2018), but let it stay for now.

Signed-off-by: Kir Kolyshkin &lt;kolyshkin@gmail.com&gt;
diff --git a/.travis.yml b/.travis.yml
@@ -2,10 +2,9 @@ language: go
 sudo: required
 
 go:
-  - 1.8.x
   - 1.9.x
   - 1.10.x
-  - 1.x
+  - 1.11.x
   - tip
 
 go_import_path: github.com/containerd/continuity
