http2: remove duplicate codeblock

PR-URL: nodejs#55915
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Tim Perry <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Jason Zhang <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>

src/node_http2.cc

@@ -1316,11 +1316,7 @@ int Http2Session::OnDataChunkReceived(nghttp2_session* handle,
     } else {
       memcpy(buf.base, data, avail);
     }
-    if (buf.base == nullptr) [[likely]] {
-      buf.base = reinterpret_cast<char*>(const_cast<uint8_t*>(data));
-    } else {
-      memcpy(buf.base, data, avail);
-    }
+
     data += avail;
     len -= avail;
     stream->EmitRead(avail, buf);