[TableGen] Delete unused Record::resolveReferencesTo() after D44478. NFC

Author: MaskRay

llvm/include/llvm/TableGen/Record.h

@@ -1604,11 +1604,6 @@ class Record {
   /// recursion / infinite loops.
   void resolveReferences(Resolver &R, const RecordVal *SkipVal = nullptr);
 
-  /// If anything in this record refers to RV, replace the
-  /// reference to RV with the RHS of RV.  If RV is null, we resolve all
-  /// possible references.
-  void resolveReferencesTo(const RecordVal *RV);
-
   RecordKeeper &getRecords() const {
     return TrackedRecords;
   }

llvm/lib/TableGen/Record.cpp

@@ -2156,11 +2156,6 @@ void Record::resolveReferences() {
   resolveReferences(R);
 }
 
-void Record::resolveReferencesTo(const RecordVal *RV) {
-  RecordValResolver R(*this, RV);
-  resolveReferences(R, RV);
-}
-
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
 LLVM_DUMP_METHOD void Record::dump() const { errs() << *this; }
 #endif