fix machete & dex quote price api

Author: akildemir

Cargo.lock

@@ -1007,9 +1007,9 @@ pub mod pallet {
         return None;
       }
 
-      let path = if coin1 == Coin::native() {
-        vec![coin2, coin1]
-      } else if coin2 == Coin::native() {
+      let path = if (coin1 == Coin::native() && coin2 != Coin::native()) ||
+        (coin2 == Coin::native() && coin1 != Coin::native())
+      {
         vec![coin1, coin2]
       } else {
         vec![coin1, Coin::native(), coin2]

substrate/dex/pallet/src/lib.rs

@@ -49,7 +49,6 @@ tokio = { version = "1", features = ["sync", "rt-multi-thread"] }
 jsonrpsee = { version = "0.16", features = ["server"] }
 
 scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
-serde = { version = "1", default-features = false, features = ["derive", "alloc"] }
 
 sc-offchain = { git = "https://github.com/serai-dex/substrate" }
 sc-transaction-pool = { git = "https://github.com/serai-dex/substrate" }