P-54 Binary search for holding time assertion (#2401)

Co-authored-by: Kailai Wang <kailai.wang@trustcomputing.de>
Co-authored-by: Zhouhui Tian <zhouhui@liteng.io>

primitives/core/src/assertion.rs

@@ -25,7 +25,7 @@ use crate::{
 use codec::{Decode, Encode, MaxEncodedLen};
 use scale_info::TypeInfo;
 use sp_runtime::{traits::ConstU32, BoundedVec};
-use sp_std::{str, vec, vec::Vec};
+use sp_std::{vec, vec::Vec};
 
 pub type ParameterString = BoundedVec<u8, ConstU32<64>>;
 
@@ -313,27 +313,6 @@ impl Assertion {
 	}
 }
 
-pub const ASSERTION_DATE_LEN: usize = 15;
-pub const ASSERTION_FROM_DATE: [&str; ASSERTION_DATE_LEN] = [
-	"2017-01-01",
-	"2017-07-01",
-	"2018-01-01",
-	"2018-07-01",
-	"2019-01-01",
-	"2019-07-01",
-	"2020-01-01",
-	"2020-07-01",
-	"2021-01-01",
-	"2021-07-01",
-	"2022-01-01",
-	"2022-07-01",
-	"2023-01-01",
-	"2023-07-01",
-	// In order to address the issue of the community encountering a false query for WBTC in
-	// November, the product team feels that adding this date temporarily solves this problem.
-	"2023-12-01",
-];
-
 #[derive(Encode, Decode, Clone, Debug, PartialEq, Eq, MaxEncodedLen, TypeInfo)]
 pub enum AmountHoldingTimeType {
 	#[codec(index = 0)]