app-mobilephone/heimdall: retire duje.mihanovic

Signed-off-by: Duje Mihanović <[email protected]>
Signed-off-by: Joonas Niilola <[email protected]>

app-mobilephone/heimdall/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>[email protected]</email>
-		<name>Duje Mihanović</name>
-	</maintainer>
-	<maintainer type="project" proxied="proxy">
-		<email>[email protected]</email>
-		<name>Proxy Maintainers</name>
-	</maintainer>
+	<!-- maintainer-needed -->
 	<upstream>
 		<remote-id type="sourcehut">~grimler/Heimdall</remote-id>
 	</upstream>