fix conversion from String to str

Author: undercover-cactus

runtime/src/genesis_config_presets.rs

@@ -205,10 +205,10 @@ fn genesis_config() -> Value {
 /// Provides the JSON representation of predefined genesis config for given `id`.
 pub fn get_preset(id: &PresetId) -> Option<vec::Vec<u8>> {
     use preset_names::*;
-    let patch = match id.try_into() {
-        Ok(PRESET_GENESIS) => genesis_config(),
-        Ok(sp_genesis_builder::LOCAL_TESTNET_RUNTIME_PRESET) => local_testnet_genesis(),
-        Ok(sp_genesis_builder::DEV_RUNTIME_PRESET) => development_config_genesis(),
+    let patch = match id.as_str() {
+        PRESET_GENESIS => genesis_config(),
+        sp_genesis_builder::LOCAL_TESTNET_RUNTIME_PRESET => local_testnet_genesis(),
+        sp_genesis_builder::DEV_RUNTIME_PRESET => development_config_genesis(),
         _ => return None,
     };
     Some(