*/*: remove invalid maintainer address

Drop packages to maintainer-needed, the e-mail used in metadata is not
valid in bugzilla.

Signed-off-by: Viorel Munteanu <ceamac@gentoo.org>

acct-user/uinput-proxy/metadata.xml

@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<maintainer type="person">
-		<email>trantiendat29042005@gmail.com</email>
-		<name>Trần Tiến Đạt</name>
-	</maintainer>
+	<!-- maintainer-needed -->
 </pkgmetadata>

app-i18n/fcitx5-lotus/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>trantiendat29042005@gmail.com</email>
-		<name>Trần Tiến Đạt</name>
-	</maintainer>
+	<!-- maintainer-needed -->
 	<longdescription>
 		Fcitx5 Lotus is a Vietnamese input method engine for the Fcitx5
 		framework, forked from VMK. It supports multiple typing methods