[PATCH] [libstdc++] Remove unused hasher instance.

[Thomas Rodgers]

This is a remnant of poorly executed refactoring.

libstdc++-v3/ChangeLog:

	* include/std/barrier (__tree_barrier::_M_arrive): Remove
        unnecessary hasher instantiation.
---
 libstdc++-v3/include/std/barrier | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libstdc++-v3/include/std/barrier b/libstdc++-v3/include/std/barrier
index fd61fb4f9da..4210e30d1ce 100644
--- a/libstdc++-v3/include/std/barrier
+++ b/libstdc++-v3/include/std/barrier
@@ -103,7 +103,6 @@ It looks different from literature pseudocode for two main reasons:
 			   static_cast<__barrier_phase_t>(__old_phase_val + 2);
 
 	size_t __current_expected = _M_expected;
-	std::hash<std::thread::id> __hasher;
 	__current %= ((_M_expected + 1) >> 1);
 
 	for (int __round = 0; ; ++__round)
-- 
2.26.2