travis: adjust git depth (GoogleChrome#1812)

paulirish · robdodson · commit d97381745896 · 2019-11-01T14:32:47.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,7 +4,6 @@ node_js:
 sudo: false
 dist: trusty
 git:
-  depth: 1
   submodules: false
 cache:
   directories:
