fix : remove _{ } syntax from benchmark macro (#7822)

* commented use of common

* hack to pass tests

* another hack

* remove all commented code

* fix the easy tests

* temp hack

* follow through comma hack until better solution

* patch macro

* missed one

* update benchmarks

* update docs

* fix docs

* removed too much

* fix changes

Co-authored-by: Shawn Tabrizi <[email protected]>

Author: stanly-johnson

src/benchmarking.rs

@@ -29,8 +29,6 @@ use crate::Module as Indices;
 const SEED: u32 = 0;
 
 benchmarks! {
-	_ { }
-
 	claim {
 		let account_index = T::AccountIndex::from(SEED);
 		let caller: T::AccountId = whitelisted_caller();