[binutils-gdb] Remove some cleanups from record-full.c

[sergiodj+buildbot at sergiodj dot net]

*** TEST RESULTS FOR COMMIT a2b2bc12af45f48617729c1413a1a01c0ee957ca ***

Author: Tom Tromey <tom@tromey.com>
Branch: master
Commit: a2b2bc12af45f48617729c1413a1a01c0ee957ca

Remove some cleanups from record-full.c

This removes some cleanups from record-full.c in a straightforward
way.

Tested by the buildbot.

gdb/ChangeLog
2018-03-22  Tom Tromey  <tom@tromey.com>

	* record-full.c (record_full_exec_insn): Use gdb::byte_vector.
	(record_full_goto_bookmark): Use std::string.