Fixes acquia#1336: Travis email error starting with Drupal 8.3.0 and Lightning 2.1.0. (acquia#1338)

* Fixes acquia#1336: Travis email error starting with Drupal 8.3.0 and Lightning 2.1.0.

* Simplifying.

Author: grasmash

scripts/travis/setup_environment

@@ -7,6 +7,10 @@ sleep 3
 
 export PATH=${COMPOSER_BIN}:$PATH
 
+# Create fake mailer.
+echo 'max_execution_time = 120' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
+echo 'sendmail_path = /bin/true' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
+
 # Enable $_ENV variables in PHP.
 echo 'variables_order = "EGPCS"' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
 # Ensure that always_populate_raw_post_data PHP setting: Not set to -1 does not happen.