Update .travis.yml
diff --git a/.travis.yml b/.travis.yml
index e91a6a4..03c5fa2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,18 +1,3 @@
 language: r
-cache:
-  packages: true
-  directories:
-    - $HOME/.TinyTeX
-latex: false
-
-env:
-  global:
-    - _R_CHECK_TESTS_NLINES_=0 PATH=$HOME/bin:$PATH
-
-addons:
-  apt:
-    packages:
-    - ghostscript
-
-before_install:
-  - wget -qO- https://github.com/yihui/tinytex/raw/master/tools/download-travis-linux.sh | sh
+sudo: false
+cache: packages