[Torch] Remove unused conversion (#8397)
[Torch] Remove unused conversion (#8397)

* fix weight shape in torch.mm conversion

* Revert "fix weight shape in torch.mm conversion"

This reverts commit a1a8fd313c999060db675848f8b3de3e1c78e468.

* [Torch] remove unused conversion
Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,Laurawly/tvm-1,dmlc/tvm,dmlc/tvm,Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,Laurawly/tvm-1,Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm