removed stray files

app/routes/about.tsx

@@ -1,45 +0,0 @@
-import * as React from 'react';
-import Container from '@mui/material/Container';
-import Typography from '@mui/material/Typography';
-import Box from '@mui/material/Box';
-import Button from '@mui/material/Button';
-import { Link as ReactRouterLink } from 'react-router';
-import ProTip from '~/components/ProTip';
-import Copyright from '~/components/Copyright';
-
-export function meta() {
-  return [
-    { title: 'About' },
-    {
-      name: 'description',
-      content: 'About the project',
-    },
-  ];
-}
-
-export default function About() {
-  return (
-    <Container maxWidth="lg">
-      <Box
-        sx={{
-          my: 4,
-          display: 'flex',
-          flexDirection: 'column',
-          justifyContent: 'center',
-          alignItems: 'center',
-        }}
-      >
-        <Typography variant="h4" component="h1" sx={{ mb: 2 }}>
-          Material UI - Next.js example in TypeScript
-        </Typography>
-        <Box sx={{ maxWidth: 'sm' }}>
-          <Button variant="contained" component={ReactRouterLink} to="/">
-            Go to the home page
-          </Button>
-        </Box>
-        <ProTip />
-        <Copyright />
-      </Box>
-    </Container>
-  );
-}