Removing change that broke back-button functionality

frontend/src/routes/register/stepPersonForm.tsx

@@ -162,7 +162,9 @@ const StepPersonForm = forwardRef((props: StepPersonFormProperties, ref: Ref<Per
                         {i18n.language === 'en' ? ou.en : ou.nb} ({ou.id})
                       </MenuItem>
                     ))
-                ) : ('')}
+                ) : (
+                  <></>
+                )}
               </Select>
             </FormControl>