remove unused Logs from DataStructures

core/java/src/net/i2p/data/Address.java

core/java/src/net/i2p/data/Certificate.java

core/java/src/net/i2p/data/DataFormatException.java

core/java/src/net/i2p/data/DataHelper.java

core/java/src/net/i2p/data/Destination.java

core/java/src/net/i2p/data/Lease.java

core/java/src/net/i2p/data/PrivateKey.java

core/java/src/net/i2p/data/PublicKey.java

core/java/src/net/i2p/data/RouterAddress.java

core/java/src/net/i2p/data/SessionKey.java

core/java/src/net/i2p/data/Signature.java

core/java/src/net/i2p/data/SigningPrivateKey.java

core/java/src/net/i2p/data/SigningPublicKey.java

core/java/src/net/i2p/data/TunnelId.java

core/java/src/net/i2p/data/VerifiedDestination.java