diff --git a/codec/src/main/java/io/netty/handler/codec/ReplayingDecoderBuffer.java b/codec/src/main/java/io/netty/handler/codec/ReplayingDecoderBuffer.java
index 8824c67d9a..54be1e4d48 100644
--- a/codec/src/main/java/io/netty/handler/codec/ReplayingDecoderBuffer.java
+++ b/codec/src/main/java/io/netty/handler/codec/ReplayingDecoderBuffer.java
@@ -152,12 +152,6 @@ final class ReplayingDecoderBuffer implements ByteBuf {
         throw new UnreplayableOperationException();
     }
 
-    @Override
-    @Deprecated
-    public ByteBuf ensureWritableBytes(int writableBytes) {
-        throw new UnreplayableOperationException();
-    }
-
     @Override
     public int ensureWritable(int minWritableBytes, boolean force) {
         throw new UnreplayableOperationException();
@@ -459,12 +453,6 @@ final class ReplayingDecoderBuffer implements ByteBuf {
         return terminated? buffer.isReadable() : true;
     }
 
-    @Override
-    @Deprecated
-    public boolean readable() {
-        return isReadable();
-    }
-
     @Override
     public boolean isReadable(int size) {
         return terminated? buffer.isReadable(size) : true;
@@ -812,12 +800,6 @@ final class ReplayingDecoderBuffer implements ByteBuf {
         return false;
     }
 
-    @Override
-    @Deprecated
-    public boolean writable() {
-        return false;
-    }
-
     @Override
     public boolean isWritable(int size) {
         return false;