Back out the change introducing the "record pic" feature.

Back out the change introducing the "record pic" feature.

gdb/ChangeLog:

        Back out the following change:
        | 2010-06-29  Hui Zhu  <teawater@gmail.com>
        | * record.c (set_record_pic_cmdlist,
        | show_record_pic_cmdlist): New variables.
        | (set_record_pic_command,
        | show_record_pic_command): New functions.
        | (record_pic_function, record_pic_line, record_pic_enum,
        | set_record_pic_type, record_pic_hide_nofunction,
        | record_pic_hide_nosource, record_pic_hide_same): New variables.
        | (record_pic_fputs): New function.
        | (function_list, node_list, edge_list): New struct.
        | (function_list, node_list, edge_list): New variables.
        | (record_pic_cleanups, record_pic_node,
        | record_pic_edge, cmd_record_pic): New functions.
        | (_initialize_record): Add new commands for record pic.