remove the version check

Author: afshin-paydar

onnxscript/function_libs/torch_lib/ops/core.py

@@ -9200,7 +9200,7 @@ def aten_type_as(self: TTensor, other: TTensor2) -> TTensor2:
 def aten_unbind(self: TTensor, dim: int = 0) -> Sequence[TTensor]:
     """unbind.int(Tensor(a -> *) self, int dim=0) -> Tensor(a)[]"""
 
-    if isinstance(self.shape[dim], int) and not version_utils.torch_older_than("2.7"):
+    if isinstance(self.shape[dim], int):
         num_outputs = self.shape[dim]
         results = []
         for i in range(num_outputs):