htaccess Script?

Does htacccess need the Twentythirteen script below?
Thanks
Dennis

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([0-9a-zA-Z]+)$ /wp-content/themes/twentythirteen/webdirect.php?link=$1 [NE]
</IfModule>

# BEGIN Protect Against Script Injections

Options +FollowSymLinks
RewriteEngine On
RewriteCond %{QUERY_STRING} ((left pointy bracket)|%3C).*script.*((right pointy bracket)|%3E) [NC,OR]
RewriteCond %{QUERY_STRING} GLOBALS(=|[|%[0-9A-Z]{0,2}) [OR]
RewriteCond %{QUERY_STRING} _REQUEST(=|[|%[0-9A-Z]{0,2})
RewriteRule ^(.*)$ index.php [F,L]

# END Protect Against Script Injections