How to clean up old logwatch archive?

Issue

• Noticed that /var was reaching a limited amount of free space and executed the following;

dh@~ /]$ sudo find /var -size +200000 -exec ls -lah {} \;                                                                  
-rw------- 1 root root 127M Nov 20 04:02 /var/cache/logwatch/logwatch.JKtged8u/http-archive
-rw------- 1 root root 101M Dec 15 04:02 /var/cache/logwatch/logwatch.bzCNYOAS/http-archive
-rw------- 1 root root 128M Dec  3 04:02 /var/cache/logwatch/logwatch.GCxLpBAJ/http-archive
-rw------- 1 root root 126M Nov 25 04:02 /var/cache/logwatch/logwatch.duJB4zWT/http-archive
-rw------- 1 root root 121M Nov 18 04:02 /var/cache/logwatch/logwatch.JfqYEjoR/http-archive
-rw------- 1 root root 136M Dec 10 04:02 /var/cache/logwatch/logwatch.TQ1W0oSY/http-archive
-rw------- 1 root root 102M Dec  5 04:02 /var/cache/logwatch/logwatch.4bNkiOtC/http-archive
-rw------- 1 root root 141M Dec 11 04:02 /var/cache/logwatch/logwatch.wyki8BfU/http-archive
-rw------- 1 root root 131M Dec  4 04:02 /var/cache/logwatch/logwatch.Vu1rC7C5/http-archive
-rw------- 1 root root 124M Nov 19 04:02 /var/cache/logwatch/logwatch.NebxU7Gy/http-archive
-rw------- 1 root root 132M Dec  9 04:02 /var/cache/logwatch/logwatch.g8JybocR/http-archive
-rw------- 1 root root 113M Dec 12 04:02 /var/cache/logwatch/logwatch.2gQUgKHj/http-archive
-rw------- 1 root root 127M Dec  2 04:02 /var/cache/logwatch/logwatch.HQ0zM4o7/http-archive