remove useless

Author: zhanglirong1999

test/ir/pir/fused_pass/onednn/test_operator_reshape_onednn_fuse_pass.py

@@ -12,9 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import unittest
-import sys
 
-sys.path.append("../")
 import numpy as np
 from pass_test import PassTest