Get rid of the servicedesk client ext. for jira lib

The former code was based on pycontribs/jira#388
which is closed and unmaintained. We only need to read the organizations
from the servicedesk REST API and the local code is minimal.

We can now use the normal jira library.

connector_jira_servicedesk/models/jira_organization/__init__.py

@@ -1,2 +1,3 @@
 from . import common
 from . import importer
+from . import adapter

connector_jira_servicedesk/models/jira_organization/adapter.py

@@ -0,0 +1,51 @@
+# Copyright 2018 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
+
+import jira
+from jira.utils import CaseInsensitiveDict
+
+from odoo.addons.component.core import Component
+
+
+class Organization(jira.resources.Resource):
+    """A Service Desk Organization."""
+
+    def __init__(self, options, session, raw=None):
+        super().__init__(
+            'organization/{0}',
+            options,
+            session,
+            '{server}/rest/servicedeskapi/{path}'
+        )
+        if raw:
+            self._parse_raw(raw)
+
+
+class OrganizationAdapter(Component):
+    _name = 'jira.organization.adapter'
+    _inherit = ['jira.webservice.adapter']
+    _apply_on = ['jira.organization']
+
+    _desk_headers = CaseInsensitiveDict({'X-ExperimentalApi': 'opt-in'})
+
+    def read(self, id_):
+        organization = Organization(
+            self.client._options,
+            self.client._session
+        )
+        organization.find(id_, headers=self._desk_headers)
+        return organization.raw
+
+    def search(self):
+        base = (self.client._options['server'] +
+                '/rest/servicedeskapi/organization')
+        orgs = self.client._fetch_pages(
+            Organization,
+            'values',
+            'organization',
+            # limit to False will get them in batch
+            maxResults=False,
+            headers=self._desk_headers,
+            base=base
+        )
+        return [org.id for org in orgs]

connector_jira_servicedesk/models/jira_organization/common.py

@@ -1,11 +1,10 @@
 # Copyright 2016 Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 
+
 from odoo import fields, models
 from odoo.addons.queue_job.job import job
 
-from odoo.addons.component.core import Component
-
 
 class JiraOrganization(models.Model):
     _name = 'jira.organization'
@@ -27,16 +26,3 @@ def import_batch(self, backend, from_date=None, to_date=None):
         with backend.work_on(self._name) as work:
             importer = work.component(usage='batch.importer')
             importer.run()
-
-
-class OrganizationAdapter(Component):
-    _name = 'jira.organization.adapter'
-    _inherit = ['jira.webservice.adapter']
-    _apply_on = ['jira.organization']
-
-    def read(self, id_):
-        return self.client.desk.organization(id_).raw
-
-    def search(self):
-        orgs = self.client.desk.organizations()
-        return [org.id for org in orgs]