refactor: Remove message processor (#417)

Author: Unshure

src/strands/event_loop/__init__.py

@@ -4,6 +4,6 @@
 iterative manner.
 """
 
-from . import event_loop, message_processor
+from . import event_loop
 
-__all__ = ["event_loop", "message_processor"]
+__all__ = ["event_loop"]

src/strands/event_loop/event_loop.py

@@ -29,7 +29,6 @@
 from ..types.exceptions import ContextWindowOverflowException, EventLoopException, ModelThrottledException
 from ..types.streaming import Metrics, StopReason
 from ..types.tools import ToolChoice, ToolChoiceAuto, ToolConfig, ToolGenerator, ToolResult, ToolUse
-from .message_processor import clean_orphaned_empty_tool_uses
 from .streaming import stream_messages
 
 if TYPE_CHECKING:
@@ -100,9 +99,6 @@ async def event_loop_cycle(agent: "Agent", kwargs: dict[str, Any]) -> AsyncGener
     stream_trace = Trace("stream_messages", parent_id=cycle_trace.id)
     cycle_trace.add_child(stream_trace)
 
-    # Clean up orphaned empty tool uses
-    clean_orphaned_empty_tool_uses(agent.messages)
-
     # Process messages with exponential backoff for throttling
     message: Message
     stop_reason: StopReason