8370079: Re-enable vmTestbase/gc/vector/CircularListLow and LinearListLow with SerialGC

Reviewed-by: tschatzl

Author: albertnetymk

test/hotspot/jtreg/vmTestbase/gc/vector/CircularListLow/TestDescription.java

@@ -31,6 +31,5 @@
  *
  * @library /vmTestbase
  *          /test/lib
- * @requires vm.gc != "Serial"
  * @run main/othervm/timeout=480 gc.vector.SimpleGC.SimpleGC -ms low -gp circularList(low)
  */

test/hotspot/jtreg/vmTestbase/gc/vector/LinearListLow/TestDescription.java

@@ -31,6 +31,5 @@
  *
  * @library /vmTestbase
  *          /test/lib
- * @requires vm.gc != "Serial"
  * @run main/othervm gc.vector.SimpleGC.SimpleGC -ms low -gp linearList(low)
  */