Fix SimpleSample to use new FullyConnected API
Fix SimpleSample to use new FullyConnected API

 * Remove deprecated code from public examples


Signed-off-by: Francis Murtagh <e59f6df1240b2b6c2b05aa682b1b9d01b9505720@arm.com>
Change-Id: Ia6c4f8d7f8c477b776d96e66085996487e8fdc75

ARM-software/armnn,ARM-software/armnn,ARM-software/armnn