Adapt pallet-contracts to WeightV2 (#12421)

* Replace contract access weight by proper PoV component

* Return the whole weight struct from dry-runs

* Fixup `seal_call` and `seal_instantiate`

* Fix duplicate extrinsics

* Remove ContractAccessWeight from runtime

* Fix doc link

* Remove leftover debugging output

substrate/frame/contracts/src/wasm/code_cache.rs

@@ -228,16 +228,11 @@ impl<T: Config> Token<T> for CodeToken {
 		// contract code. This is why we subtract `T::*::(0)`. We need to do this at this
 		// point because when charging the general weight for calling the contract we not know the
 		// size of the contract.
-		let ref_time_weight = match *self {
+		match *self {
 			Reinstrument(len) => T::WeightInfo::reinstrument(len),
-			Load(len) => {
-				let computation = T::WeightInfo::call_with_code_per_byte(len)
-					.saturating_sub(T::WeightInfo::call_with_code_per_byte(0));
-				let bandwidth = T::ContractAccessWeight::get().saturating_mul(len as u64);
-				computation.max(bandwidth)
-			},
-		};
-
-		ref_time_weight
+			Load(len) => T::WeightInfo::call_with_code_per_byte(len)
+				.saturating_sub(T::WeightInfo::call_with_code_per_byte(0))
+				.set_proof_size(len.into()),
+		}
 	}
 }