8301200: Don't scale timeout stress with timeout factor

Reviewed-by: lkorinth
(cherry picked from commit 6397cb611a)

test/hotspot/jtreg/vmTestbase/nsk/share/test/StressOptions.java

@@ -211,12 +211,12 @@ public class StressOptions {
     }
 
     /**
-     * Obtain execution time in seconds adjusted for TIMEOUT_FACTOR.
+     * Obtain execution time in seconds.
      *
      * @return time
      */
     public long getTime() {
-        return Utils.adjustTimeout(time);
+        return time;
     }
 
     /**