dev-tex/dvi2tty: Remove proxy-maint

Remove proxy maintainer project from metadata, because there was no
proxied maintainer left.
Reported-By: Michael Mair-Keimberger
Package-Manager: Portage-2.3.11, Repoman-2.3.3

dev-tex/dvi2tty/metadata.xml

@@ -9,8 +9,4 @@
 	<email>[email protected]</email>
 	<name>Gentoo TeX Project</name>
 </maintainer>
-<maintainer type="project">
-	<email>[email protected]</email>
-	<name>Proxy Maintainers</name>
-</maintainer>
 </pkgmetadata>