remove quartz-dev again, as onyx-dev was reinstalled

nbit.ch.zone

@@ -2,7 +2,7 @@ $TTL 4h
 $ORIGIN nbit.ch.
 
 @  1D  IN	 SOA ns1.nbit.ch. hostmaster.nbit.ch. (
-			      2026110601; serial
+			      2026110701; serial
 			      3H ; refresh
 			      120; retry
 			      2w ; expire
@@ -36,8 +36,6 @@ onyx          IN      A       5.75.251.111
 onyx          IN      AAAA    2a01:4f8:c012:c21c::1
 onyx-dev      IN      A       168.119.114.44
 onyx-dev      IN      AAAA    2a01:4f8:c2c:9c5e::1
-quartz-dev    IN      A       2.31.158.208
-quartz-dev    IN      AAAA    2a01:4f8:1c16:d8e::1
 mx1           IN      A       5.75.251.111
 mx1           IN      AAAA    2a01:4f8:c012:c21c::1
 mx2           IN      A       168.119.114.44