Revert "fix: always read power mode from controller"

This reverts commit a66982d.

razer_control_gui/src/device.rs

@@ -261,8 +261,7 @@ impl DeviceManager {
         }
         if let Some(laptop) = self.get_device() {
             let state = laptop.get_ac_state();
-            if state != ac && pwr != 0 && pwr != 3 {
-                eprintln!("Unsupported mode");
+            if state != ac {
                 res = true;
             } else {
                 res = laptop.set_power_mode(pwr, cpu, gpu);
@@ -412,7 +411,13 @@ impl DeviceManager {
 
     pub fn get_power_mode(&mut self, _ac:usize) -> u8 {
         if let Some(laptop) = self.get_device() {
-            return laptop.get_power_mode(0x01);
+            if laptop.ac_state as usize == ac {
+                return laptop.get_power_mode(0x01);
+            }
+        }
+
+        if let Some(config) = self.get_ac_config(ac) {
+            return config.power_mode;
         }
 
         return 0;