[dqt] Remove old dqt module

Remove the old CouchDB based "dqt" module.

All projects that I've asked who still use it has overrides, so there
is no reason to keep the old and unmaintained code in the repository.

Author: Dave MacFarlane

SQL/0000-00-01-Modules.sql

@@ -51,7 +51,6 @@ INSERT INTO modules (Name, Active) VALUES ('survey_accounts', 'Y');
 INSERT INTO modules (Name, Active) VALUES ('timepoint_list', 'Y');
 INSERT INTO modules (Name, Active) VALUES ('user_accounts', 'Y');
 INSERT INTO modules (Name, Active) VALUES ('electrophysiology_browser', 'Y');
-INSERT INTO modules (Name, Active) VALUES ('dqt', 'Y');
 INSERT INTO modules (Name, Active) VALUES ('electrophysiology_uploader', 'Y');
 INSERT INTO modules (Name, Active) VALUES ('dataquery', 'Y');
 INSERT INTO modules (Name, Active) VALUES ('schedule_module', 'Y');

modules/dataquery/php/module.class.inc

@@ -40,7 +40,7 @@ class Module extends \Module
      */
     public function getLongName() : string
     {
-        return dgettext("dataquery", "Data Query Tool (Beta)");
+        return dgettext("dataquery", "Data Query Tool");
     }
 
     /**