cleaned up some mut

gem-remotes-esp32/src/ble_server.rs

@@ -43,14 +43,14 @@ impl BleServer {
         }
     }
 
-    pub async fn run(&mut self) -> Result<()> {
+    pub async fn run(&self) -> Result<()> {
         match self.do_run().await {
             Ok(_) => {error!("Exited bluetooth server wait loop with no error.");panic!();}
             Err(e) => {error!("Bluetooth task encountered error {}", e);panic!();}
         }
     }
 
-    pub async fn do_run(&mut self) -> Result<()> {
+    pub async fn do_run(&self) -> Result<()> {
         trace!("Entering BLE Run");
         let ble_device = BLEDevice::take();
         set_device_security(ble_device);