bluetooth: Clean up connection errors

device/bluetooth/bluetooth_device.h

Index: device/bluetooth/bluetooth_device.h
diff --git a/device/bluetooth/bluetooth_device.h b/device/bluetooth/bluetooth_device.h
index e0545fa27677ab9cf877fd46184a886deddb402f..8a5d0638574d8b3596bf2b7b2c114cfc58cd824c 100644
--- a/device/bluetooth/bluetooth_device.h
+++ b/device/bluetooth/bluetooth_device.h
@@ -77,21 +77,14 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothDevice {
   // Possible errors passed back to an error callback function in case of a
   // failed call to Connect().
   enum ConnectErrorCode {
-    ERROR_ATTRIBUTE_LENGTH_INVALID,
     ERROR_AUTH_CANCELED,
     ERROR_AUTH_FAILED,
     ERROR_AUTH_REJECTED,
     ERROR_AUTH_TIMEOUT,
-    ERROR_CONNECTION_CONGESTED,
     ERROR_FAILED,
     ERROR_INPROGRESS,
-    ERROR_INSUFFICIENT_ENCRYPTION,
-    ERROR_OFFSET_INVALID,
-    ERROR_READ_NOT_PERMITTED,
-    ERROR_REQUEST_NOT_SUPPORTED,
     ERROR_UNKNOWN,
     ERROR_UNSUPPORTED_DEVICE,
-    ERROR_WRITE_NOT_PERMITTED,
     NUM_CONNECT_ERROR_CODES  // Keep as last enum.
   };