restore qcom changes

Author: cccclai

backends/qualcomm/README.md

@@ -12,7 +12,6 @@ A website version of the tutorial is [here](https://pytorch.org/executorch/main/
 
 ## Delegate Options
 
-
 Please check `generate_qnn_executorch_compiler_spec()` in
 [utils.py](utils/utils.py) for supported SoC and inference type.