app-i18n/enca: remove myself from maintainers

As the last mpv version that uses enca faces removal
I no longer have interest in maintaining enca.

Package-Manager: Portage-2.3.6, Repoman-2.3.3

app-i18n/enca/metadata.xml

@@ -1,18 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
- <maintainer type="person">
- <email>[email protected]</email>
- <name>Coacher</name>
- </maintainer>
  <maintainer type="person">
  <email>[email protected]</email>
  <name>Maxim Koltsov</name>
  </maintainer>
- <maintainer type="project">
- <email>[email protected]</email>
- <name>Proxy Maintainers</name>
- </maintainer>
  <upstream>
  <remote-id type="github">nijel/enca</remote-id>
  </upstream>