remove recursion limit (#3348)

According to the
[doc](https://doc.rust-lang.org/reference/attributes/limits.html), the
default is 128, so no point to specify limit with 128

Co-authored-by: Bastian Köcher <git@kchr.de>

substrate/frame/collective/src/lib.rs

@@ -40,7 +40,6 @@
 //! If there are not, or if no prime is set, then the motion is dropped without being executed.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![recursion_limit = "128"]
 
 use codec::{Decode, Encode, MaxEncodedLen};
 use scale_info::TypeInfo;