update travis file

.travis.yml

@@ -17,16 +17,12 @@ matrix:
     - perl: '5.8'
   fast_finish: true
   include:
-      - perl: '5.24'
+    - perl: '5.26'
       env: COVERAGE=1
 addons:
   apt:
     packages:
       - libsnmp-dev
-# Dist::Zilla would make this easier
 before_install:
-# for some reason, travis-perl doesnt work out that it needs to install:
-  - cpanm --quiet --notest DBIx::Class::Optional::Dependencies
   - cpanm Test::More
-#  - cd Netdisco; perl Makefile.PL; make listalldeps | cpanm --quiet --notest
   - eval $(curl https://travis-perl.github.io/init) --auto