Is this normal? What can I delete?

root@srv1 [~]# rpm -qa|grep MySQL MySQL55-client-5.5.40-1.cp1136.x86_64 compat-MySQL51-shared-5.1.73-4.cp1136.x86_64 MySQL55-devel-5.5.40-1.cp1136.x86_64 cpanel-perl-514-MySQL-Diff-0.43-2.cp1146.x86_64 compat-MySQL50-shared-5.0.96-4.cp1136.x86_64 MySQL55-server-5.5.40-1.cp1136.x86_64 MySQL55-test-5.5.40-1.cp1136.x86_64 MySQL55-shared-5.5.40-1.cp1136.x86_64 Is this normal or can I delete certain of those? Thanks