ci(travis.yml): remove node_modules from cache

BerkeleyTrue · BerkeleyTrue · commit 4e4007ff7d69 · 2018-05-31T10:53:02.000-07:00
npm ci requires this directory to be empty
diff --git a/.travis.yml b/.travis.yml
@@ -11,7 +11,6 @@ install:
   - npm ci
 cache:
   directories:
-  - node_modules
   - "$HOME/.npm"
 
 # after_success:
