remove feature as its not used, and speed up web loading slightly

interface/src/SignIn.tsx

@@ -3,7 +3,6 @@ import { Box, Paper, Typography, MenuItem, TextField, Button } from '@mui/materi
 import { useRequest } from 'alova';
 import { useContext, useState } from 'react';
 import { toast } from 'react-toastify';
-import { FeaturesContext } from './contexts/features';
 import type { ValidateFieldsError } from 'async-validator';
 
 import type { Locales } from 'i18n/i18n-types';
@@ -35,8 +34,6 @@ const SignIn: FC = () => {
 
   const { LL, setLocale, locale } = useContext(I18nContext);
 
-  const { features } = useContext(FeaturesContext);
-
   const [signInRequest, setSignInRequest] = useState<SignInRequest>({
     username: '',
     password: ''
@@ -112,7 +109,6 @@ const SignIn: FC = () => {
         })}
       >
         <Typography variant="h4">{PROJECT_NAME}</Typography>
-        <Typography variant="subtitle2">{features.version}</Typography>
 
         <TextField name="locale" variant="outlined" value={locale} onChange={onLocaleSelected} size="small" select>
           <MenuItem key="de" value="de">