Revert "Implemented concept to specify the type of a vsphere nic as string an read the defaults from default_nic_type from .fog file 2nd"
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This reverts commit acf6f8172378654be7f84f20cad050b55ce8c331.
Revert "Implemented concept to specify the type of a vsphere nic as string an read the defaults from default_nic_type from .fog file"

Belongs to another branch.
This reverts commit 098637601eb63b1a357d77e020a0efe21f64d068.