Revert "[fix] ltorch.to to return a copy, when copy=True (#1775)"

This reverts commit 92a6adb.

thunder/tests/test_core.py

@@ -1865,20 +1865,6 @@ def torch_to(a, memory_format):
         assert_close(torch_result, thunder_result, check_stride=True)
 
 
-def test_torch_tensor_to_return_type():
-    a = torch.randn(2, 4, 5, 3)
-
-    def torch_to(a):
-        return a.to(copy=True)
-
-    jfoo = thunder.jit(torch_to)
-    thunder_result = jfoo(a)
-    torch_result = torch_to(a)
-
-    assert thunder_result is not a
-    assert_close(torch_result, thunder_result)
-
-
 # TODO See issue "Add contiguous and clang.stride_order OpInfos that check stride
 # consistency with PyTorch"
 @instantiate(

thunder/torch/__init__.py

@@ -472,13 +472,6 @@ def to(
     copy: bool = False,
     memory_format: None | torch.memory_format = None,
 ) -> TensorLike:
-
-    input_device = a.device
-    input_dtype = a.dtype
-    if copy and not _will_to_return_self(input_device, input_dtype, device, dtype, memory_format, copy):
-        b = prims.empty(a.shape, device=input_device, dtype=input_dtype)
-        return _copy_(b, a)
-
     device, dtype = _parse_to_device_and_dtype(
         tensor_dtype_or_device, optional_positional_dtype, device=device, dtype=dtype
     )