Remove unused export

frameworks/PHP/php-laravel/install.sh

@@ -3,8 +3,6 @@
 fw_depends php nginx composer
 
 export PHP_HOME=${IROOT}/php-5.5.17
-export PHP_FPM=${PHP_HOME}/bin/php-fpm
-export NGINX_HOME=${IROOT}/nginx
 
 ${PHP_HOME}/bin/php ${IROOT}/composer.phar install \
   --no-interaction --working-dir ${TROOT} \