Removed un-needed build step.

I hope they have size 'M'.

.travis.yml

@@ -23,9 +23,6 @@ env:
   global:
     - PIP_DOWNLOAD_CACHE=".pip_download_cache"
 
-install:
-  - make dev-postgres
-
 before_script:
   - psql -c "create database lemur;" -U postgres
   - psql -c "create user lemur with password 'lemur;'" -U postgres
@@ -36,4 +33,4 @@ script:
 
 notifications:
   email:
-    kglisson@netflix.com
+    kglisson@netflix.com