chore: remove trace_ids attr left over

Author: heitorlessa

tests/e2e/utils/data_fetcher/traces.py

@@ -205,7 +205,7 @@ def _get_trace_documents(self, trace_ids: List[str]) -> Dict[str, TraceDocument]
         Dict[str, TraceDocument]
             Trace documents grouped by their ID
         """
-        traces = self.xray_client.batch_get_traces(TraceIds=self.trace_ids)
+        traces = self.xray_client.batch_get_traces(TraceIds=trace_ids)
         documents: Dict = {}
         segments = [seg for trace in traces["Traces"] for seg in trace["Segments"]]
         for seg in segments: