Revert "Reset lagging flag after it has been used in the getwork scheduler."

This reverts commit 19267907c038a0d5e94be2b229d1e61b565e371d.

Redundant.

cgminer.c

@@ -6801,7 +6801,6 @@ begin_bench:
 			total_go++;
 		}
 		pool = select_pool(lagging);
-		lagging = false;
 retry:
 		if (pool->has_stratum) {
 			while (!pool->stratum_active) {