chore: minor comment update

Signed-off-by: shuiyisong <[email protected]>

Author: shuiyisong

src/common/grpc/src/channel_manager.rs

@@ -296,7 +296,6 @@ fn load_tls_config(tls_option: Option<&ClientTlsOption>) -> Result<Option<Client
 }
 
 impl TlsConfigLoader<ClientTlsConfig> for ClientTlsOption {
-    type Config = ClientTlsConfig;
     type Error = crate::error::Error;
 
     fn load(&self) -> Result<Option<ClientTlsConfig>> {

src/common/grpc/src/reloadable_tls.rs

@@ -25,7 +25,6 @@ use crate::error::{FileWatchSnafu, Result};
 
 /// A trait for loading TLS configuration from an option type
 pub trait TlsConfigLoader<T> {
-    type Config;
     type Error;
 
     /// Load the TLS configuration
@@ -100,6 +99,11 @@ where
 ///
 /// This is a generic function that works with any ReloadableTlsConfig.
 /// When changes are detected, it calls the provided callback after reloading.
+///
+/// T: the original TLS config
+/// O: the compiled TLS option
+/// F: the hook function to be called after reloading
+/// E: the error type for the loading operation
 pub fn maybe_watch_tls_config<T, O, F, E>(
     tls_config: Arc<ReloadableTlsConfig<T, O>>,
     on_reload: F,

src/servers/src/tls.rs

@@ -141,7 +141,6 @@ impl TlsOption {
 }
 
 impl TlsConfigLoader<Arc<ServerConfig>> for TlsOption {
-    type Config = Arc<ServerConfig>;
     type Error = crate::error::Error;
 
     fn load(&self) -> Result<Option<Arc<ServerConfig>>> {