phosh-base/phosh-tour: drop myself as a maintainer

Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>

phosh-base/phosh-tour/metadata.xml

@@ -1,10 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<maintainer type="person">
-		<email>cyber+gentoo@sysrq.in</email>
-		<name>Anna</name>
-	</maintainer>
+	<!-- maintainer-needed -->
 	<upstream>
 		<remote-id type="gnome-gitlab">World/Phosh/phosh-tour</remote-id>
 	</upstream>