Clean up 'torch.onnx' entries from public API allowlist (#162850)

Clean up entries related to 'torch.onnx' from the allowlist as the apis in onnx are properly configured.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/162850
Approved by: https://github.com/albanD

test/allowlist_for_publicAPI.json

@@ -658,13 +658,6 @@
     "Iterable",
     "Optional"
   ],
-  "torch.onnx": [
-    "Dict",
-    "OperatorExportTypes",
-    "Optional",
-    "TensorProtoDataType",
-    "TrainingMode"
-  ],
   "torch.overrides": [
     "BaseTorchFunctionMode",
     "TorchFunctionMode",
@@ -2207,21 +2200,6 @@
     "Tuple",
     "abstractmethod"
   ],
-  "torch.onnx.verification": [
-    "Any",
-    "Callable",
-    "Collection",
-    "Dict",
-    "FrozenSet",
-    "List",
-    "Mapping",
-    "Number",
-    "Optional",
-    "Sequence",
-    "Set",
-    "Tuple",
-    "Union"
-  ],
   "torch.quantization.fx": [
     "convert",
     "fuse",
@@ -2685,35 +2663,6 @@
     "DeferredMtiaCallError",
     "StreamContext"
   ],
-  "torch.onnx.symbolic_helper": [
-    "Any",
-    "Callable",
-    "List",
-    "Literal",
-    "NoReturn",
-    "Number",
-    "Optional",
-    "Sequence",
-    "Set",
-    "Tuple",
-    "Union"
-  ],
-  "torch.onnx.symbolic_opset18": [
-    "amax",
-    "amin",
-    "aminmax",
-    "embedding_bag",
-    "linalg_vector_norm",
-    "max",
-    "maximum",
-    "min",
-    "minimum"
-  ],
-  "torch.onnx.symbolic_opset20": [
-    "_affine_grid_generator",
-    "_grid_sampler",
-    "convert_grid_sample_mode"
-  ],
   "torch.utils.data.datapipes.dataframe.dataframe_wrapper": [
     "Any",
     "Optional"