.travis.yml: remove accidently added add sudo command
diff --git a/.travis.yml b/.travis.yml
index ce9ec9b..b49c0a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,7 +31,6 @@
   - gcc
 
 before_install:
-    add sudo
   - sh build/travis/installCXXDependencies.sh
   - if [ "$ALL_DEPS" != "no" ] ; then sh build/travis/installDependencies.sh 1> /dev/null ; fi
   - if [ "$ALL_DEPS" != "no" ] ; then export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/1.20/bin:$PATH ; fi