Rebase error fix

Author: winskuo-quic

backends/qualcomm/export_utils.py

@@ -517,7 +517,9 @@ def build_executorch_binary(
         qnn_config.backend == QnnExecuTorchBackendType.kGpuBackend
         and not qnn_config.online_prepare
     ):
-        raise RuntimeError("Currently GPU backend only supports online_prepare.")
+        raise RuntimeError(
+            "Currently GPU backend only supports online_prepare. Please add --online_prepare flag."
+        )
     if (
         qnn_config.backend == QnnExecuTorchBackendType.kLpaiBackend
         and qnn_config.online_prepare

backends/qualcomm/tests/test_qnn_delegate.py

@@ -8984,7 +8984,6 @@ def setup_environment():
     )
 
     args, ns_args = parser.parse_known_args(namespace=unittest)
-    args.validate(args)
     TestQNN.host = args.host
     TestQNN.device = args.device
     TestQNN.soc_model = args.soc_model