Remove conversion of system message to human in ChatGoogleGenerativeAI

The "convert_system_message_to_human" parameter has been removed from all instances of ChatGoogleGenerativeAI model in guardrails_models.py. Now, this conversion will no longer take place.

guardrails_models.py

@@ -113,7 +113,6 @@ def gemini_pro(
 ):
     llm = ChatGoogleGenerativeAI(
         model="gemini-pro",
-        convert_system_message_to_human=True,
         temperature=temperature,
         max_retries=6,
         metadata={"top_p": top_p, "max_output_tokens": max_output_tokens},
@@ -251,7 +250,6 @@ def gemini_pro_llamaguard(
     else:
         llm = ChatGoogleGenerativeAI(
             model="gemini-pro",
-            convert_system_message_to_human=True,
             temperature=temperature,
             max_retries=6,
             metadata={"top_p": top_p, "max_output_tokens": max_output_tokens},
@@ -384,7 +382,6 @@ def gemini_pro_nemoguardrails(
         config,
         llm=ChatGoogleGenerativeAI(
             model="gemini-pro",
-            convert_system_message_to_human=True,
             temperature=temperature,
             max_retries=6,
             metadata={"top_p": top_p, "max_output_tokens": max_output_tokens},