Remove ResourcePriorityQueue::dump as it relies on copying a non-copyable type which would result in a double-delete

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231126 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/ResourcePriorityQueue.h

@@ -124,8 +124,6 @@ namespace llvm {
 
     void remove(SUnit *SU) override;
 
-    void dump(ScheduleDAG* DAG) const override;
-
     /// scheduledNode - Main resource tracking point.
     void scheduledNode(SUnit *Node) override;
     bool isResourceAvailable(SUnit *SU);