Server spams this, fix pls

[00:27:21] [Server thread/WARN] [IC2.EnergyNet]: API ERROR: ic2.core.energy.leg.Tile@194ddc82{net.xalcon.energyconverters.common.tiles.TileEntityConsumerEu@21a4cadd,net.xalcon.energyconverters.common.tiles.TileEntityConsumerEu@21a4cadd} (0:BlockPos{x=783, y=71, z=1979}) didn't implement demandsEnergy() properly, no energy from injectEnergy accepted (512) although demandsEnergy() requested 512.