PipeStream

- Removed override for `close()` as `FDStream` can handle it

source/river/impls/pipe.d

@@ -146,26 +146,6 @@ public class PipeStream : FDStream
         }
     }
 
-    /** 
-     * Closes both pipe pairs
-     */
-    public override void close()
-    {
-        version(Posix)
-        {
-            import core.sys.posix.unistd : close;
-
-            // TODO: Do something with the error code of both calls to `close`
-            close(readEndFd);
-            close(writeEndFd);
-        }
-        else
-        {
-            pragma(msg, "PipeStream: The close() call is not implemented for your platform");
-            static assert(false);
-        }
-    }
-
     public override ulong write(byte[] fromArray)
     {
         version(Posix)