[binutils-gdb] Use floatformat_totalsize_bytes

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT e1ba30532c6de26a14404ab4919bb591e8da3eab ***

Author: Yao Qi <yao.qi@linaro.org>
Branch: master
Commit: e1ba30532c6de26a14404ab4919bb591e8da3eab

Use floatformat_totalsize_bytes

The code can be replaced by floatformat_totalsize_bytes.

gdb:

2017-04-24  Yao Qi  <yao.qi@linaro.org>

	* doublest.c (convert_doublest_to_floatformat): Call
	floatformat_totalsize_bytes.