clean unused code from client

Change-Id: I0abb42581826712a0fba972db647f0eeecae5786
diff --git a/client/src/components/ConversationsOverviewCard.js b/client/src/components/ConversationsOverviewCard.js
index 9c57bff..96e03f6 100644
--- a/client/src/components/ConversationsOverviewCard.js
+++ b/client/src/components/ConversationsOverviewCard.js
@@ -1,5 +1,5 @@
 import React, { useEffect, useState } from 'react';
-import { Box, Card, CardActionArea, CardContent, CircularProgress, Typography } from '@mui/material';
+import { Card, CardActionArea, CardContent, CircularProgress, Typography } from '@mui/material';
 import makeStyles from '@mui/styles/makeStyles';
 import { useNavigate, useParams } from 'react-router';
 import authManager from '../AuthManager'
diff --git a/client/src/components/SendMessageForm.js b/client/src/components/SendMessageForm.js
index ae0a7de..f447f34 100644
--- a/client/src/components/SendMessageForm.js
+++ b/client/src/components/SendMessageForm.js
@@ -3,7 +3,6 @@
 import { IconButton, InputBase, Paper, Popper } from '@mui/material'
 import { Send, EmojiEmotionsRounded } from '@mui/icons-material'
 import EmojiPicker from 'emoji-picker-react'
-import authManager from '../AuthManager'
 
 const useStyles = makeStyles((theme) => ({
   root: {
@@ -54,7 +53,6 @@
     <div className="send-message-form">
       <Paper component="form"
         onSubmit={handleSubmit}
-        className="send-message-card"
         className={classes.root}>
         <IconButton
           aria-describedby={id}