Revert "feat: provider-specific model configuration " (#5873)

Revert "feat: provider-specific model configuration  (#5774)"

This reverts commit 34a334949a3ef72cd49ff0ca3da9e85d16daa57c.

tests/test_client.py

@@ -587,6 +587,37 @@ def test_agent_creation(client: Letta):
     client.agents.delete(agent_id=agent.id)
 
 
+# --------------------------------------------------------------------------------------------------------------------
+# Agent sources
+# --------------------------------------------------------------------------------------------------------------------
+def test_attach_detach_agent_source(client: Letta, agent: AgentState):
+    """Test that we can attach and detach a source from an agent"""
+
+    # Create a source
+    source = client.sources.create(
+        name="test_source",
+        embedding="openai/text-embedding-3-small",
+    )
+    initial_sources = client.agents.sources.list(agent_id=agent.id)
+    assert source.id not in [s.id for s in initial_sources]
+
+    # Attach source
+    client.agents.sources.attach(agent_id=agent.id, source_id=source.id)
+
+    # Verify source is attached
+    final_sources = client.agents.sources.list(agent_id=agent.id)
+    assert source.id in [s.id for s in final_sources]
+
+    # Detach source
+    client.agents.sources.detach(agent_id=agent.id, source_id=source.id)
+
+    # Verify source is detached
+    final_sources = client.agents.sources.list(agent_id=agent.id)
+    assert source.id not in [s.id for s in final_sources]
+
+    client.sources.delete(source.id)
+
+
 # --------------------------------------------------------------------------------------------------------------------
 # Agent Initial Message Sequence
 # --------------------------------------------------------------------------------------------------------------------