[XAM] Removed gamertag endianness swap

- Fixed issue with XamShowDeviceSelectorUI not being triggered in specific cases
- Partially fixed XamProfileCreate - Now it should create profile correctly
- Fixed XamProfileGetCreationStatus crash

src/xenia/kernel/xam/xam_ui.cc

@@ -518,13 +518,6 @@ dword_result_t XamShowDeviceSelectorUI_entry(
     return X_ERROR_INVALID_PARAMETER;
   }
 
-  if (user_index != XUserIndexAny &&
-      !kernel_state()->xam_state()->IsUserSignedIn(user_index)) {
-    kernel_state()->CompleteOverlappedImmediate(overlapped,
-                                                X_ERROR_NO_SUCH_USER);
-    return X_ERROR_IO_PENDING;
-  }
-
   std::vector<const DummyDeviceInfo*> devices = ListStorageDevices();
 
   if (cvars::headless || !cvars::storage_selection_dialog) {