Remove unnecessary empty `///` lines in the rust docs.

Suggested-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/1109
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Hridesh MG <hridesh699@gmail.com>
---
Changelog:
v1->v2
- Fixed typo in commit title and description
- Removed backslashes in kernel::block::mq::Request
- Link to v1: https://lore.kernel.org/rust-for-linux/20240909161749.147076-1-hridesh699@gmail.com/

v2->v3
- Fixed From: tag in patch header
- Link to v2: https://lore.kernel.org/rust-for-linux/aa1b4059dfac001945745db02b6f6d9db2e5d1cb.1726072795.git.hridesh699@gmail.com/

No changes from v3->v6
---
 rust/kernel/block/mq/request.rs | 1 -
 rust/kernel/rbtree.rs           | 1 -
 2 files changed, 2 deletions(-)

diff --git a/rust/kernel/block/mq/request.rs b/rust/kernel/block/mq/request.rs
index a0e22827f3f4..313334b1bf18 100644
--- a/rust/kernel/block/mq/request.rs
+++ b/rust/kernel/block/mq/request.rs
@@ -30,7 +30,6 @@
 /// D) Request is owned by driver with more than one `ARef` in existence
 ///    (refcount > 2)
 ///
-///
 /// We need to track A and B to ensure we fail tag to request conversions for
 /// requests that are not owned by the driver.
 ///
diff --git a/rust/kernel/rbtree.rs b/rust/kernel/rbtree.rs
index d03e4aa1f481..c0730c1f9707 100644
--- a/rust/kernel/rbtree.rs
+++ b/rust/kernel/rbtree.rs
@@ -1034,7 +1034,6 @@ fn next(&mut self) -> Option<Self::Item> {
 
 /// A memory reservation for a red-black tree node.
 ///
-///
 /// It contains the memory needed to hold a node that can be inserted into a red-black tree. One
 /// can be obtained by directly allocating it ([`RBTreeNodeReservation::new`]).
 pub struct RBTreeNodeReservation<K, V> {
-- 
2.46.1