Switch All construct_runtimes to New Syntax (#2979)

Clean up all the old syntax.

---------

Co-authored-by: command-bot <>
Co-authored-by: gupnik <nikhilgupta.iitk@gmail.com>
Co-authored-by: Nikhil Gupta <17176722+gupnik@users.noreply.github.com>
Co-authored-by: Maksym H <1177472+mordamax@users.noreply.github.com>

substrate/frame/support/test/stg_frame_crate/src/lib.rs

@@ -68,8 +68,8 @@ mod tests {
 	construct_runtime! {
 		pub struct Runtime
 		{
-			System: frame_system::{Pallet, Call, Storage, Config<T>, Event<T>},
-			Pallet: pallet::{Pallet, Config<T>},
+			System: frame_system,
+			Pallet: pallet,
 		}
 	}
 }