Reverting use of proxy for x64 wininet, urlmon, and iertutil

[nmlynch94]

Fixes #214

Reverting the use of a proxy for these dependencies because only x86 is available there.

Type of change

• [ ] New dependency
• [ ] Manifest fix
• [x] Other

Was this tested using a local repository?

• [x] Yes
• [ ] No

[mirkobrombin]

Hey are you sure? Both cabinet files has the same hash, so they are the same. Are they different and you just forgot to update the hash?