Remove bytes from the input sequence.
If n is greater than the
number of bytes in the input sequence, all bytes in the input sequence
All previous buffers sequences obtained from calls to basic_flat_buffer::data or basic_flat_buffer::prepare are invalidated.
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)