[binutils-gdb] Remove a string copy from event_location_to_sals

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT 9be2c17a900178df75a2208fd112ceb4325a70c1 ***

Author: Tom Tromey <tom@tromey.com>
Branch: master
Commit: 9be2c17a900178df75a2208fd112ceb4325a70c1

Remove a string copy from event_location_to_sals

The use of "const" showed that a string copy in event_location_to_sals
was unnecessary.  This patch removes it.

ChangeLog
2018-04-05  Tom Tromey  <tom@tromey.com>

	* linespec.c (event_location_to_sals) <case ADDRESS_LOCATION>:
	Remove a string copy.