(#1899) Revert to original transports for API requests

[hoffmabc]

Self-explanatory. It reverts custom transports for non-Tor nodes to original default transports.

Addresses the following issues:

• https://github.com/OpenBazaar/openbazaar-go/issues/1899
• https://github.com/OpenBazaar/openbazaar-go/issues/1861
• https://github.com/OpenBazaar/openbazaar-go/issues/1862

Related to:

• https://github.com/OpenBazaar/openbazaar-go/issues/1659
• https://github.com/OpenBazaar/openbazaar-go/issues/1363