Use relaxed ordering for nbio's mpsc head counter and pool's destroy exchange, as their acquire paired with nothing

core/container/pool/pool.odin

@@ -48,7 +48,7 @@ init :: proc(p: ^Pool($T), $link_field: string, block_size: uint = DEFAULT_BLOCK
 }
 
 destroy :: proc(p: ^Pool($T)) {
-	elem := sync.atomic_exchange_explicit(&p.free_list, nil, .Acquire)
+	elem := sync.atomic_exchange_explicit(&p.free_list, nil, .Relaxed)
 
 	sync.atomic_store_explicit(&p.num_ready, 0, .Relaxed)
 

core/nbio/mpsc.odin

@@ -32,7 +32,7 @@ mpsc_enqueue :: proc(mpscq: ^Multi_Producer_Single_Consumer, obj: rawptr) -> boo
 		return false
 	}
 
-	head := sync.atomic_add_explicit(&mpscq.head, 1, .Acquire)
+	head := sync.atomic_add_explicit(&mpscq.head, 1, .Relaxed)
 	assert(mpscq.buffer[head & mpscq.mask] == nil)
 	rv := sync.atomic_exchange_explicit(&mpscq.buffer[head & mpscq.mask], obj, .Release)
 	assert(rv == nil)