Revert "Making NN hardware interface libs "host supported""

Revert "Making NNAPI libraries and tests host supported"

Revert submission 1769046-neuralnetworks_host_build

Reason for revert: New Build Breakage
Reverted Changes:
Ib54d5c274:Making NNAPI libraries and tests host supported
I1d7c66516:Making NN hardware interface libs "host supported"...

Change-Id: I6f65774325889c50b9f8bbab13b557705419b6cf