fixup! Remove atEnd.

Author: topperc

llvm/include/llvm/CodeGen/SelectionDAGNodes.h

@@ -806,9 +806,6 @@ END_TWO_BYTE_PACK()
       return !operator==(x);
     }
 
-    /// Return true if this iterator is at the end of uses list.
-    bool atEnd() const { return Op == nullptr; }
-
     // Iterator traversal: forward iteration only.
     use_iterator &operator++() {          // Preincrement
       assert(Op && "Cannot increment end iterator!");
@@ -853,9 +850,6 @@ END_TWO_BYTE_PACK()
     bool operator==(const user_iterator &x) const { return UI == x.UI; }
     bool operator!=(const user_iterator &x) const { return !operator==(x); }
 
-    /// Return true if this iterator is at the end of the uses list.
-    bool atEnd() const { return *this == user_iterator(); }
-
     user_iterator &operator++() { // Preincrement
       ++UI;
       return *this;