Revert "Unsetting non-existant key does not throw notice/error, so unset without checking"
Revert "Unsetting non-existant key does not throw notice/error, so unset without checking"

This reverts commit 532b3e771755fda3909fc46a02211dfc3317730d.

PierrickI3/new-daas,loren-osborn/puphpet,ryanneufeld/puphpet,bezhermoso/puphpet,virajs/puphpet,fly19890211/puphpet,virajs/puphpet,virajs/puphpet,fizz/puphpet,bezhermoso/puphpet,modulexcite/puphpet,boonchu/puphpet,OpenSorceress/puphpet,mbrukman/puphpet,djeraseit/puphpet,mattclegg/puphpet,artetecha/puphpet,fizz/puphpet,rbramwell/puphpet,enriquezm/puphpet,ryanneufeld/puphpet,bountin/puphpet,MichaelMackus/puphpet,rbramwell/puphpet,bezhermoso/puphpet,MichaelMackus/puphpet,modulexcite/puphpet,cybd/puphpet,ikari7789/puphpet,mbrukman/puphpet,mattclegg/puphpet,ikari7789/puphpet,artetecha/puphpet,modulexcite/puphpet,boonchu/puphpet,mattclegg/puphpet,fizz/puphpet,artetecha/puphpet,virajs/puphpet,bezhermoso/puphpet,ikari7789/puphpet,PierrickI3/new-daas,ikari7789/puphpet,loren-osborn/puphpet,thedeedawg/puphpet,thedeedawg/puphpet,enriquezm/puphpet,karschsp/puphpet,boonchu/puphpet,ikari7789/puphpet,fly19890211/puphpet,rbramwell/puphpet,mattclegg/puphpet,enriquezm/puphpet,fly19890211/puphpet,ryanneufeld/puphpet,fly19890211/puphpet,OpenSorceress/puphpet,karschsp/puphpet,MichaelMackus/puphpet,MichaelMackus/puphpet,enriquezm/puphpet,loren-osborn/puphpet,djeraseit/puphpet,ryanneufeld/puphpet,boonchu/puphpet,ReservedDeveloper/puphpet,mbrukman/puphpet,modulexcite/puphpet,karschsp/puphpet,OpenSorceress/puphpet,bountin/puphpet,cgvarela/puphpet,djeraseit/puphpet,loren-osborn/puphpet,djeraseit/puphpet,bezhermoso/puphpet,fly19890211/puphpet,DASPRiD/puphpet,PierrickI3/new-daas,thedeedawg/puphpet,cgvarela/puphpet,DASPRiD/puphpet,cybd/puphpet,thedeedawg/puphpet,PierrickI3/new-daas,ReservedDeveloper/puphpet,bountin/puphpet,fizz/puphpet,artetecha/puphpet,thedeedawg/puphpet,karschsp/puphpet,DASPRiD/puphpet,mattclegg/puphpet,bountin/puphpet,bountin/puphpet,OpenSorceress/puphpet,PierrickI3/new-daas,enriquezm/puphpet,cybd/puphpet,fizz/puphpet,karschsp/puphpet,rbramwell/puphpet,modulexcite/puphpet,loren-osborn/puphpet,ReservedDeveloper/puphpet,cgvarela/puphpet,virajs/puphpet,mbrukman/puphpet,ReservedDeveloper/puphpet,artetecha/puphpet,ryanneufeld/puphpet,DASPRiD/puphpet,ReservedDeveloper/puphpet,rbramwell/puphpet,cybd/puphpet,boonchu/puphpet,cybd/puphpet,mbrukman/puphpet,cgvarela/puphpet,djeraseit/puphpet,cgvarela/puphpet,DASPRiD/puphpet,OpenSorceress/puphpet