Removed redundant camera mutex
Removed redundant camera mutex

andrewkaufman/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer