BedrockLLMService: pull initial system frame from messages

src/pipecat/services/aws/llm.py

@@ -382,15 +382,8 @@ class BedrockLLMContext(OpenAILLMContext):
         # See if we should pull the system message out of our context.messages list. (For
         # compatibility with Open AI messages format.)
         if self.messages and self.messages[0]["role"] == "system":
-            if len(self.messages) == 1:
-                # If we have only have a system message in the list, all we can really do
-                # without introducing too much magic is change the role to "user".
-                self.messages[0]["role"] = "user"
-            else:
-                # If we have more than one message, we'll pull the system message out of the
-                # list.
-                self.system = self.messages[0]["content"]
-                self.messages.pop(0)
+            self.system = self.messages[0]["content"]
+            self.messages.pop(0)
 
         # Merge consecutive messages with the same role.
         i = 0