CameraTweaksUI : Remove unused imports and variables
CameraTweaksUI : Remove unused imports and variables

andrewkaufman/gaffer,ImageEngine/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,hradec/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,hradec/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,hradec/gaffer,ImageEngine/gaffer,hradec/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,ImageEngine/gaffer,hradec/gaffer,GafferHQ/gaffer,GafferHQ/gaffer