[golemfactory/golem] remove working dir (#3216)

Elfoniok commented on this pull request.

> @@ -122,9 +120,6 @@ def __do_work(self):
abs_res_path = os.path.abspath(os.path.normpath(self.res_path))
abs_tmp_path = os.path.abspath(os.path.normpath(self.tmp_path))

— self.prev_working_directory = os.getcwd()
— os.chdir(os.path.join(abs_res_path,

/tmp/ ? I think its always good to remove chdir (like who use that?!, what if separate threads are saving files and someone just change its working dir?). I am pretty sure that this is working dir for local test, during adding task (but better confirm this) so datadir/network_name/tmp dir ?