Remove MO_PATH definition

This was originally added in 0e8cf55 but should have been removed in 3678fa5.

Author: jmikola

.travis.yml

@@ -84,8 +84,6 @@ before_install:
   - export PATH=${PWD}/${SERVER_FILENAME}/bin:${PATH}
   - mongod --version
   - mongo-orchestration --version
-  - export MO_PATH=`python -c 'import mongo_orchestration; from os import path;
-    print(path.dirname(mongo_orchestration.__file__));'`
   - php -r 'if ( ! ($f = php_ini_loaded_file())) { $f = PHP_CONFIG_FILE_PATH . "/php.ini"; } file_put_contents($f, "variables_order=EGPCS\n", FILE_APPEND); $a = file($f, FILE_IGNORE_NEW_LINES); var_dump($a[count($a)-1]);'
 
 before_script: