diff --git a/tools/cooja/java/se/sics/cooja/interfaces/ByteRadio.java b/tools/cooja/java/se/sics/cooja/interfaces/ByteRadio.java
deleted file mode 100644
index 1c882ced6..000000000
--- a/tools/cooja/java/se/sics/cooja/interfaces/ByteRadio.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package se.sics.cooja.interfaces;
-
-/**
- * A byte radio is able to transmit and receive radio data on a byte level.
- * 
- * The byte radio is a lower abstraction level than the packet radio and should,
- * according to the bottom-up abstraction policy, implement the packet
- * abstraction level.
- * 
- * @author Fredrik Osterlind
- */
-public interface ByteRadio extends PacketRadio {
-
-  /**
-   * Radio receives given byte.
-   * 
-   * @param b
-   *          Byte
-   * @param delay
-   *          Delay cycle information
-   */
-  public void receiveByte(byte b, long delay);
-
-  /**
-   * @return Last byte transmitted by radio
-   */
-  public byte getLastByteTransmitted();
-
-  /**
-   * Returns number of cycles since last byte was transmitted.
-   * 
-   * @return Timestamp info
-   */
-  public long getLastByteTransmittedDelay();
-
-  /**
-   * @return Last byte received by radio
-   */
-  public byte getLastByteReceived();
-}
diff --git a/tools/cooja/java/se/sics/cooja/interfaces/PacketRadio.java b/tools/cooja/java/se/sics/cooja/interfaces/PacketRadio.java
deleted file mode 100644
index cd799464b..000000000
--- a/tools/cooja/java/se/sics/cooja/interfaces/PacketRadio.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package se.sics.cooja.interfaces;
-
-/**
- * A packet radio is able to transmit and receive radio data on a packet level.
- * 
- * The packet radio is the highest abstraction level of radios, and must
- * therefore be implemented by all lower abstraction levels.
- * 
- * @author Fredrik Osterlind
- */
-public interface PacketRadio {
-
-  /**
-   * Sets the packet data that is being received during a connection. Different
-   * radio may handle the data differently, but as a general rule this data
-   * should be supplied as soon as possible.
-   * 
-   * @param p
-   *          Packet dat
-   */
-  public void setReceivedPacket(byte[] p);
-
-  /**
-   * @return Last packet transmitted by radio
-   */
-  public byte[] getLastPacketTransmitted();
-
-  /**
-   * @return Last packet received by radio
-   */
-  public byte[] getLastPacketReceived();
-
-}