lib: use createFactory to create constructor

I think these code lines are unnecessary, so I use a factory function to generate them

https://github.com/nodejs/node/blob/f53a2414474c2b1aee07ab367415b32c20e50bd9/lib/crypto.js#L104-L148

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines