Remove obsolete comment. Unreachable blocks will automatically be left at the

end of the function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11313 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/BasicBlockPlacement.cpp

@@ -80,8 +80,6 @@ bool BlockPlacement::runOnFunction(Function &F) {
   // Recursively place all blocks.
   PlaceBlocks(F.begin());
   
-  // If there are any unreachable blocks, move them to the end.
-
   PlacedBlocks.clear();
   NumMoved += NumMovedBlocks;
   return NumMovedBlocks != 0;