remove bad static framework target.

new build system not support same product name, and product name must
same with module name. but I don't want another module name. so remove
it.

if really need static framework, can change the VFL target's Mach-O Type.

or use https://github.com/Carthage/Carthage/blob/master/Documentation/StaticFrameworks.md

adopt swift5

CocoaPod Support

static framework support

Create LICENSE