delete recordio writer for release/1.0

doc/fluid/api/gen_doc.sh

 #!/bin/bash
 python gen_doc.py layers --submodules control_flow device io nn ops tensor learning_rate_scheduler detection metric_op > layers.rst
 
-for module in data_feeder clip metrics executor initializer io nets optimizer param_attr profiler regularizer transpiler recordio_writer backward average profiler
+for module in data_feeder clip metrics executor initializer io nets optimizer param_attr profiler regularizer transpiler backward average profiler
 do
   python gen_doc.py ${module} > ${module}.rst
 done

doc/fluid/api/index_en.rst

@@ -20,7 +20,6 @@ API Reference
     io.rst
     data.rst
     transpiler.rst
-    recordio_writer.rst
     backward.rst
     average.rst
     profiler.rst

doc/fluid/api/recordio_writer.rst

-..  THIS FILE IS GENERATED BY `gen_doc.{py|sh}`
-    !DO NOT EDIT THIS FILE MANUALLY!
-
-=====================
-fluid.recordio_writer
-=====================
-
-.. _api_fluid_recordio_writer_convert_reader_to_recordio_file:
-
-convert_reader_to_recordio_file
--------------------------------
-
-..  autofunction:: paddle.fluid.recordio_writer.convert_reader_to_recordio_file
-    :noindex:
-
-.. _api_fluid_recordio_writer_convert_reader_to_recordio_files:
-
-convert_reader_to_recordio_files
---------------------------------
-
-..  autofunction:: paddle.fluid.recordio_writer.convert_reader_to_recordio_files
-    :noindex:
-