simplify control flow per Keno's suggestion

Author: nsajko

base/task.jl

@@ -1201,30 +1201,19 @@ function wait()
     process_events()
 
     # get the next task to run
-    result = nothing
-    have_result = false
     W = workqueue_for(Threads.threadid())
     task = trypoptask(W)
     if task === nothing
         # No tasks to run; switch to the scheduler task to run the
         # thread sleep logic.
         sched_task = get_sched_task()
         if ct !== sched_task
-            result = yieldto(sched_task)
-            have_result = true
-        else
-            task = ccall(:jl_task_get_next, Ref{Task}, (Any, Any, Any),
-                         trypoptask, W, checktaskempty)
+            return yieldto(sched_task)
         end
+        task = ccall(:jl_task_get_next, Ref{Task}, (Any, Any, Any), trypoptask, W, checktaskempty)
     end
-    # We may have already switched tasks (via the scheduler task), so
-    # only switch if we haven't.
-    if !have_result
-        task = task::Task
-        set_next_task(task)
-        result = try_yieldto(ensure_rescheduled)
-    end
-    return result
+    set_next_task(task::Task)
+    try_yieldto(ensure_rescheduled)
 end
 
 if Sys.iswindows()