[FIX] web_editor: remove useless params when call IAP OLG

Since [this other commit], web_editor can call IAP to generate text via
chatGPT. Unfortunately, an unnecessary param (`version`) was given to
IAP leading to a warning on the IAP side
`generate_content_from_conversation> called ignoring args <version=X>`.
This commit removes this useless param.

[this other commit]: https://github.com/odoo/odoo/commit/386a2fdebf429b0318473e596ed9ac0966d9a8b5

Related to task-3383324

closes odoo/odoo#162249

Signed-off-by: Romain Derie (rde) <rde@odoo.com>

addons/web_editor/controllers/main.py

@@ -806,7 +806,6 @@ class Web_Editor(http.Controller):
             response = iap_tools.iap_jsonrpc(olg_api_endpoint + "/api/olg/1/chat", params={
                 'prompt': prompt,
                 'conversation_history': conversation_history or [],
-                'version': release.version,
                 'database_id': database_id,
             }, timeout=30)
             if response['status'] == 'success':