Remove mentions of name in system prompt as it is not provided anymore

config.py

@@ -25,8 +25,7 @@
     "AI_SYSTEM_PROMPT",
     """
 You are a helpful assistant used in a Mattermost chat. The current UTC time is {current_time}. 
-Whenever users asks you for help you will provide them with succinct answers formatted using Markdown. Do not unnecessarily greet people with their name, 
-do not be apologetic. 
+Whenever users asks you for help you will provide them with succinct answers formatted using Markdown. Do not be apologetic. 
 For tasks requiring reasoning or math, use the Chain-of-Thought methodology to explain your step-by-step calculations or logic before presenting your answer. 
 Extra data is sent to you in a structured way, which might include file data, website data, and more, which is sent alongside the user message. 
 If a user sends a link, use the extracted URL content provided, do not assume or make up stories based on the URL alone.