Here is the thing...you can disable core dumps, system dumps, no way. As @Lesley said, its there for a reason, plus, if you think about it, makes it easier for support to help you if there is ever a crash and needs to be investigated by TAC/R&D
Andy
[Expert@CP-TEST-FW:0]# clish
CP-TEST-FW> set core
CP-TEST-FW> set core-dump
disable - Disable core dumps
enable - Enable core dumps
per_process - set dumps amount limit per process
total - set total space usage limit
CP-TEST-FW> set syste
CP-TEST-FW> set core-
CP-TEST-FW> set core-dump
disable - Disable core dumps
enable - Enable core dumps
per_process - set dumps amount limit per process
total - set total space usage limit
CP-TEST-FW> set core-dump