Fix OSX CI build

Author: mgreter

script/ci-install-deps

@@ -15,9 +15,6 @@ if [ "x$AUTOTOOLS" == "xyes" ]; then
     sudo apt-get -qq install automake
   fi
 
-  # https://github.com/sass/libsass/pull/2183
-  if [ "$TRAVIS_OS_NAME" == "osx" ]; then
-    brew uninstall libtool
-    brew install libtool
-  fi
 fi
+
+exit 0