Auto merge of rust-lang#1210 - emilio:travis-maybe, r=emilio

bors-servo · web-flow · commit d5014a103a74 · 2018-01-04T05:29:58.000-06:00
Fix travis. Per https://docs.travis-ci.com/user/languages/cpp/, though not super-confident this will fix it.
diff --git a/.travis.yml b/.travis.yml
@@ -1,12 +1,5 @@
 language: rust
 
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - gcc-5
-
 os:
   - linux
 
