benchmarks: generated weight functions have compile errors

[radkomih]

Is there an existing issue?

• I have searched the existing issues

Description of bug

1. For calls, whose weight depends on the input size, sometimes the weight function is generated with and sometimes without an additional parameter in the function signature (size).

func callRemarkWithEventWeight(dbWeight primitives.RuntimeDbWeight, size sc.U64) primitives.Weight {
	return primitives.WeightFromParts(1269787272, 0).
		SaturatingAdd(primitives.WeightFromParts(4547, 0).SaturatingMul(size)).
		SaturatingAdd(dbWeight.Reads(0)).
		SaturatingAdd(dbWeight.Writes(0))
}

2. For calls whose weights depend on the input size and also affect the database read/writes, the weight function is always generated incorrectly.

• with a additional line SaturatingAdd(dbWeight.Writes(1, 0).SaturatingMul(size)).
• dbWeight.Writes(1, 0) with an additional parameter

func callSetStorageWeight(dbWeight primitives.RuntimeDbWeight, size sc.U64) primitives.Weight {
	return primitives.WeightFromParts(0, 0).
			SaturatingAdd(primitives.WeightFromParts(8050380, 0).SaturatingMul(size)).
		SaturatingAdd(dbWeight.Reads(0)).
		SaturatingAdd(dbWeight.Writes(0)).
			SaturatingAdd(dbWeight.Writes(1, 0).SaturatingMul(size)).
}

Steps to reproduce

No response