[ticket/15924] Install apc via pecl and remove nginx config check

PHPBB3-15924

travis/setup-php-extensions.sh

@@ -46,7 +46,7 @@ php_ini_file=$(find_php_ini)
 if [ `php -r "echo (int) version_compare(PHP_VERSION, '5.5.0-dev', '<');"` == "1" ]
 then
 	echo 'Enabling APC PHP extension'
-	register_php_extension 'apc' "$php_ini_file"
+	printf "\n" | pecl install apc
 	echo 'apc.enable_cli=1' >> "$php_ini_file"
 else
 	echo 'Disabling Opcache'

travis/setup-webserver.sh

@@ -54,5 +54,4 @@ cat $DIR/../phpBB/docs/nginx.sample.conf \
 | sudo tee $NGINX_SITE_CONF
 sudo sed -i "s/user www-data;/user $USER;/g" $NGINX_CONF
 
-sudo nginx -t
 sudo service nginx start