images.loader: Disable saving a bmp on win32.
images.loader: Disable saving a bmp on win32.

This is probably fixable with enough auditing of the gdiplus flat
interface.

mrjbq7/factor,factor/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,tgunr/factor,tgunr/factor,factor/factor,mrjbq7/factor,tgunr/factor,mrjbq7/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,tgunr/factor,factor/factor,bpollack/factor,tgunr/factor,mrjbq7/factor,AlexIljin/factor,tgunr/factor,mrjbq7/factor,bpollack/factor,AlexIljin/factor,bpollack/factor,factor/factor,AlexIljin/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,AlexIljin/factor,factor/factor