Removed unused variable in test

Author: oandreeva-nv

qa/L0_trace/opentelemetry_unittest.py

@@ -192,7 +192,6 @@ def test_nested_spans(self):
 def prepare_data(client):
 
     inputs = []
-    outputs = []
     input0_data = np.full(shape=(1, 16), fill_value=-1, dtype=np.int32)
     input1_data = np.full(shape=(1, 16), fill_value=-1, dtype=np.int32)