Remove bulk reading, because for an unexplainable reason it can cause garbled data. (reverse-merged from commit ed667e2b72)

proxy/src/main/java/net/md_5/bungee/packet/PacketInputStream.java

@@ -63,13 +63,5 @@ public class PacketInputStream implements AutoCloseable
             out.write(ret);
             return ret;
         }
-
-        @Override
-        public int read(byte[] b, int off, int len) throws IOException
-        {
-            int ret = wrapped.read(b, off, len);
-            out.write(b, off, ret);
-            return ret;
-        }
     }
 }