remove unnecessary comments
remove unnecessary comments

Signed-off-by: Shuo Lai <e5484c61b241f6877512d6e74e684717276ad6c9@vlsipool-j19.eecs.umich.edu>

The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,QuantamHD/OpenROAD