media-libs/libsoundio: Maintainer retired

Proxied maintainer retired due to inactivity.
Bug: https://bugs.gentoo.org/633102
Package-Manager: Portage-3.0.30, Repoman-3.0.3
Signed-off-by: Jonas Stein <jstein@gentoo.org>

media-libs/libsoundio/metadata.xml

@@ -1,14 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-<maintainer type="person" proxied="yes">
-	<email>sir.suriv@gmail.com</email>
-	<name>Diogo Pereira</name>
-</maintainer>
-<maintainer type="project" proxied="proxy">
-	<email>proxy-maint@gentoo.org</email>
-	<name>Proxy Maintainers</name>
-</maintainer>
+<!-- maintainer-needed -->
 <longdescription lang="en">
 	C library providing cross-platform audio input and output. The API is
 	suitable for real-time software such as digital audio workstations as