dbSta: remove unused set and wasted work in PinModDbNetConnection::operator

Signed-off-by: Matt Liberty <[email protected]>

Author: maliberty

src/dbSta/src/dbNetwork.cc

@@ -4056,11 +4056,9 @@ class PinModDbNetConnection : public PinVisitor
                         Logger* logger,
                         const Net* net_to_search);
   void operator()(const Pin* pin) override;
-  const std::set<dbModNet*>& getModNets() const { return modnets_; }
   dbNet* getNet() const { return dbnet_; }
 
  private:
-  std::set<dbModNet*> modnets_;
   dbNet* dbnet_;
   Logger* logger_ = nullptr;
   bool db_net_search_ = false;
@@ -4092,14 +4090,6 @@ void PinModDbNetConnection::operator()(const Pin* pin)
 
   db_network_->staToDb(pin, iterm, bterm, moditerm);
 
-  if (iterm && iterm->getModNet()) {
-    modnets_.insert(iterm->getModNet());
-  } else if (bterm && bterm->getModNet()) {
-    modnets_.insert(bterm->getModNet());
-  } else if (moditerm && moditerm->getModNet()) {
-    modnets_.insert(moditerm->getModNet());
-  }
-
   dbNet* candidate_flat_net = db_network_->flatNet(pin);
   if (candidate_flat_net) {
     //