export/hazard:
export/hazard:

Remove the `makedirs` call in the hazard map export. If the caller
asks to export to a file-like, this breaks.


Former-commit-id: 027fca31fed7698b26ca86ac627669c01bf99c75
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine