Revert "update travis to run the new self test"

This reverts commit 2fdfe3a.

This test works locally for me, but fails with error 2 (ENOENT?) on
travis.  Will have to debug this some other time...

.travis.yml

@@ -2,9 +2,8 @@ language: rust
 before_install:
   - sudo apt-get update
 install:
-  - sudo apt-get install fuse libfuse-dev
+  - sudo apt-get install libfuse-dev
 script:
   - cargo build --verbose
-  - cargo test --verbose
 notifications:
   on_success: never