[fix] at::print for quantized Tensor (#35545)

Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35545

Looks like we have never printed a quantized Tensor in cpp before

(Note: this ignores all push blocking failures!)

Test Plan:
.

Imported from OSS

Differential Revision: D20699748

fbshipit-source-id: 9d029815c6e75f626afabf92194154efc83f5545
diff --git a/aten/src/ATen/core/Formatting.cpp b/aten/src/ATen/core/Formatting.cpp
index 6352c7b..9823dab 100644
--- a/aten/src/ATen/core/Formatting.cpp
+++ b/aten/src/ATen/core/Formatting.cpp
@@ -240,7 +240,7 @@
   } else {
     Tensor tensor;
     if (tensor_.is_quantized()) {
-      Tensor tensor = tensor_.dequantize().to(kCPU, kDouble).contiguous();
+      tensor = tensor_.dequantize().to(kCPU, kDouble).contiguous();
     } else {
       tensor = tensor_.to(kCPU, kDouble).contiguous();
     }