cleanup <weight></weight> from docs comments (#13350)

* cleanup <weight></weight> from docs comments

* Changes to address review commnets

* Fix CI cargo test --docs

---------

Co-authored-by: parity-processbot <>

substrate/frame/nicks/src/lib.rs

@@ -129,12 +129,8 @@ pub mod pallet {
 		///
 		/// The dispatch origin for this call must be _Signed_.
 		///
-		/// # <weight>
+		/// ## Complexity
 		/// - O(1).
-		/// - At most one balance operation.
-		/// - One storage read/write.
-		/// - One event.
-		/// # </weight>
 		#[pallet::call_index(0)]
 		#[pallet::weight(50_000_000)]
 		pub fn set_name(origin: OriginFor<T>, name: Vec<u8>) -> DispatchResult {
@@ -162,12 +158,8 @@ pub mod pallet {
 		///
 		/// The dispatch origin for this call must be _Signed_.
 		///
-		/// # <weight>
+		/// ## Complexity
 		/// - O(1).
-		/// - One balance operation.
-		/// - One storage read/write.
-		/// - One event.
-		/// # </weight>
 		#[pallet::call_index(1)]
 		#[pallet::weight(70_000_000)]
 		pub fn clear_name(origin: OriginFor<T>) -> DispatchResult {
@@ -189,12 +181,8 @@ pub mod pallet {
 		///
 		/// The dispatch origin for this call must match `T::ForceOrigin`.
 		///
-		/// # <weight>
+		/// ## Complexity
 		/// - O(1).
-		/// - One unbalanced handler (probably a balance transfer)
-		/// - One storage read/write.
-		/// - One event.
-		/// # </weight>
 		#[pallet::call_index(2)]
 		#[pallet::weight(70_000_000)]
 		pub fn kill_name(origin: OriginFor<T>, target: AccountIdLookupOf<T>) -> DispatchResult {
@@ -217,12 +205,8 @@ pub mod pallet {
 		///
 		/// The dispatch origin for this call must match `T::ForceOrigin`.
 		///
-		/// # <weight>
+		/// ## Complexity
 		/// - O(1).
-		/// - At most one balance operation.
-		/// - One storage read/write.
-		/// - One event.
-		/// # </weight>
 		#[pallet::call_index(3)]
 		#[pallet::weight(70_000_000)]
 		pub fn force_name(