Do not throttle the workaround for --jit-wait

--jit-wait CI can be stuck when the workaround is throttled
http://ci.rvm.jp/results/trunk-mjit-wait@phosphorus-docker/3274091

mjit_worker.c

@@ -1369,11 +1369,10 @@ mjit_worker(void)
                 RB_DEBUG_COUNTER_INC(mjit_unload_units);
                 unload_units();
                 unload_requests = 0;
-
-                if (active_units.length == mjit_opts.max_cache_size && mjit_opts.wait) { // Sometimes all methods may be in use
-                    mjit_opts.max_cache_size++; // avoid infinite loop on `rb_mjit_wait_call`. Note that --jit-wait is just for testing.
-                    verbose(1, "No units can be unloaded -- incremented max-cache-size to %d for --jit-wait", mjit_opts.max_cache_size);
-                }
+            }
+            if (active_units.length == mjit_opts.max_cache_size && mjit_opts.wait) { // Sometimes all methods may be in use
+                mjit_opts.max_cache_size++; // avoid infinite loop on `rb_mjit_wait_call`. Note that --jit-wait is just for testing.
+                verbose(1, "No units can be unloaded -- incremented max-cache-size to %d for --jit-wait", mjit_opts.max_cache_size);
             }
         }
         unit = get_from_list(&unit_queue);