Remove DaVinci OM test file

test/models.json

@@ -3787,13 +3787,6 @@
     "format":   "DaVinci OM",
     "link":     "https://github.com/lutzroeder/netron/issues/799"
   },
-  {
-    "type":     "om",
-    "target":   "resnet50v1_framework_tensorflow_aipp_0_batch_1_input_fp16_output_FP32.om",
-    "source":   "https://obs-9be7.obs.cn-east-2.myhuaweicloud.com/turing/resourcecenter/model/Resnet50V1/zh/1.1/ATC_Resnet50_V1_from_Tensorflow_Ascend310.zip[resnet50v1_framework_tensorflow_aipp_0_batch_1_input_fp16_output_FP32.om]",
-    "format":   "DaVinci OM",
-    "link":     "https://www.hiascend.com/zh/software/modelzoo/detail/1/7548422b6b9c4a809114435f6b128bb6"
-  },
   {
     "type":     "openvino",
     "target":   "2018_R3_age-gender-recognition-retail-0013.xml,2018_R3_age-gender-recognition-retail-0013.bin",