[Bro] Properly disabling certain rules

[James Lay]

Team,

So...after upgrading to Bro 2.3, syslog and ssl have returned, which I 
do not want to see.  I commented them out in init-default.bro, which is 
not the right way to go I know.  How can I disable these in my 
local.bro?  Thank you.

James