fix(comment): review suggestion

Co-authored-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Siddharth Priya <s2priya@uwaterloo.ca>

Author: priyasiddharth

virtio-queue/Cargo.toml

@@ -25,9 +25,7 @@ memoffset = "0.9.0"
 
 # The following deps are needed only under kani
 [target.'cfg(kani)'.dependencies]
-# libc is needed to setup flags for MmapRegionStub
 libc = "0.2.161"
-# additional backends for setting up MmapRegionStub
 vm-memory = { workspace = true, features = ["backend-mmap", "backend-bitmap", "backend-atomic"] }
 
 [[bench]]