fmbttizen: fix destructor after unsuccessful init
fmbttizen: fix destructor after unsuccessful init

mlq/fMBT,acozzette/fMBT,pombreda/fMBT,rseymour/fMBT,mixu-/fMBT,violep01/fMBT,mlq/fMBT,acozzette/fMBT,heivi/fMBT,mlq/fMBT,heivi/fMBT,mixu-/fMBT,acozzette/fMBT,giantpinkwalrus/fMBT,heivi/fMBT,acozzette/fMBT,rseymour/fMBT,giantpinkwalrus/fMBT,rseymour/fMBT,01org/fMBT,yoonkiss/fMBT,rseymour/fMBT,01org/fMBT,pombreda/fMBT,heivi/fMBT,pombreda/fMBT,mlq/fMBT,mlq/fMBT,pombreda/fMBT,giantpinkwalrus/fMBT,rseymour/fMBT,01org/fMBT,pombreda/fMBT,violep01/fMBT,yoonkiss/fMBT,01org/fMBT,01org/fMBT,violep01/fMBT,heivi/fMBT,mixu-/fMBT,violep01/fMBT,mlq/fMBT,violep01/fMBT,giantpinkwalrus/fMBT,heivi/fMBT,mlq/fMBT,pombreda/fMBT,yoonkiss/fMBT,mixu-/fMBT,pombreda/fMBT,heivi/fMBT,acozzette/fMBT,mixu-/fMBT,rseymour/fMBT,rseymour/fMBT,giantpinkwalrus/fMBT,yoonkiss/fMBT,yoonkiss/fMBT