Removed deprecated data requests

ckanext/odsh/templates/datarequests/base.html

ckanext/odsh/templates/datarequests/close.html

ckanext/odsh/templates/datarequests/comment.html

ckanext/odsh/templates/datarequests/edit.html

ckanext/odsh/templates/datarequests/index.html

ckanext/odsh/templates/datarequests/new.html

ckanext/odsh/templates/datarequests/show.html

...xt/odsh/templates/datarequests/snippets/comment_form.html

...xt/odsh/templates/datarequests/snippets/comment_item.html

ckanext/odsh/templates/datarequests/snippets/comments.html

...dsh/templates/datarequests/snippets/datarequest_form.html

...dsh/templates/datarequests/snippets/datarequest_item.html

...dsh/templates/datarequests/snippets/datarequest_list.html

...templates/datarequests/snippets/new_datarequest_form.html

ckanext/odsh/templates/snippets/search_form.html

ckanext/odsh/tests_wip/test_datarequest.py