Code cleanup

Added missing this, annotations, etc.

src/main/java/appeng/tile/powersink/ForgeEnergyAdapter.java

@@ -24,7 +24,7 @@ class ForgeEnergyAdapter implements IEnergyStorage
 	@Override
 	public final int receiveEnergy( int maxReceive, boolean simulate )
 	{
-		final double offered = (double) maxReceive;
+		final double offered = maxReceive;
 		final double overflow = this.sink.injectExternalPower( PowerUnits.RF, offered, simulate ? Actionable.SIMULATE : Actionable.MODULATE );
 
 		return (int) ( maxReceive - overflow );

src/main/java/appeng/tile/powersink/TeslaEnergyAdapter.java

@@ -42,7 +42,7 @@ class TeslaEnergyAdapter implements ITeslaConsumer
 	public long givePower( long power, boolean simulated )
 	{
 		// Cut it down to what we can represent in a double
-		double offeredPower = (double) power;
+		double offeredPower = power;
 
 		final double overflow = this.sink.injectExternalPower( PowerUnits.RF, offeredPower, simulated ? Actionable.SIMULATE : Actionable.MODULATE );