[transport] remove GetEndpoint() method (#36597)

Closes #36597

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36597 from markdroth:transport_endpoint_cleanup 6bd73e402e
PiperOrigin-RevId: 636714985

src/core/ext/transport/binder/transport/binder_transport.cc

@@ -693,11 +693,6 @@ void grpc_binder_transport::Orphan() {
                 absl::OkStatus());
 }
 
-grpc_endpoint* grpc_binder_transport::GetEndpoint() {
-  gpr_log(GPR_INFO, __func__);
-  return nullptr;
-}
-
 size_t grpc_binder_transport::SizeOfStream() const {
   return sizeof(grpc_binder_stream);
 }

src/core/ext/transport/binder/transport/binder_transport.h

@@ -60,7 +60,6 @@ struct grpc_binder_transport final : public grpc_core::FilterStackTransport {
   void SetPollset(grpc_stream*, grpc_pollset*) override {}
   void SetPollsetSet(grpc_stream*, grpc_pollset_set*) override {}
   void PerformOp(grpc_transport_op* op) override;
-  grpc_endpoint* GetEndpoint() override;
   size_t SizeOfStream() const override;
   bool HackyDisableStreamOpBatchCoalescingInConnectedChannel() const override {
     return false;

src/core/ext/transport/chaotic_good/client_transport.h

@@ -82,7 +82,6 @@ class ChaoticGoodClientTransport final : public ClientTransport {
   void SetPollset(grpc_stream*, grpc_pollset*) override {}
   void SetPollsetSet(grpc_stream*, grpc_pollset_set*) override {}
   void PerformOp(grpc_transport_op*) override;
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
   void Orphan() override {
     AbortWithError();
     Unref();

src/core/ext/transport/chaotic_good/server_transport.h

@@ -94,7 +94,6 @@ class ChaoticGoodServerTransport final : public ServerTransport {
   void SetPollset(grpc_stream*, grpc_pollset*) override {}
   void SetPollsetSet(grpc_stream*, grpc_pollset_set*) override {}
   void PerformOp(grpc_transport_op*) override;
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
   void Orphan() override;
 
   void SetCallDestination(
@@ -158,4 +157,4 @@ class ChaoticGoodServerTransport final : public ServerTransport {
 }  // namespace chaotic_good
 }  // namespace grpc_core
 
-#endif  // GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_SERVER_TRANSPORT_H
+#endif  // GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_SERVER_TRANSPORT_H

src/core/ext/transport/chttp2/transport/chttp2_transport.cc

@@ -3168,8 +3168,6 @@ const char* grpc_chttp2_initiate_write_reason_string(
   GPR_UNREACHABLE_CODE(return "unknown");
 }
 
-grpc_endpoint* grpc_chttp2_transport::GetEndpoint() { return ep; }
-
 size_t grpc_chttp2_transport::SizeOfStream() const {
   return sizeof(grpc_chttp2_stream);
 }

src/core/ext/transport/chttp2/transport/internal.h

@@ -256,7 +256,6 @@ struct grpc_chttp2_transport final : public grpc_core::FilterStackTransport,
   void SetPollsetSet(grpc_stream* stream,
                      grpc_pollset_set* pollset_set) override;
   void PerformOp(grpc_transport_op* op) override;
-  grpc_endpoint* GetEndpoint() override;
 
   grpc_endpoint* ep;
   grpc_core::Slice peer_string;

src/core/ext/transport/cronet/transport/cronet_transport.cc

@@ -131,7 +131,6 @@ struct grpc_cronet_transport final : public grpc_core::FilterStackTransport {
   void SetPollsetSet(grpc_stream* /*stream*/,
                      grpc_pollset_set* /*pollset_set*/) override {}
   void PerformOp(grpc_transport_op* op) override;
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
   size_t SizeOfStream() const override;
   void InitStream(grpc_stream* gs, grpc_stream_refcount* refcount,
                   const void* server_data, grpc_core::Arena* arena) override;

src/core/ext/transport/inproc/inproc_transport.cc

@@ -85,7 +85,6 @@ class InprocServerTransport final : public ServerTransport {
       Crash("set_accept_stream not supported on inproc transport");
     }
   }
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
 
   void Disconnect(absl::Status error) {
     if (disconnecting_.exchange(true, std::memory_order_relaxed)) return;
@@ -162,7 +161,6 @@ class InprocClientTransport final : public ClientTransport {
   void SetPollset(grpc_stream*, grpc_pollset*) override {}
   void SetPollsetSet(grpc_stream*, grpc_pollset_set*) override {}
   void PerformOp(grpc_transport_op*) override { Crash("unimplemented"); }
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
 
  private:
   ~InprocClientTransport() override {

src/core/ext/transport/inproc/legacy_inproc_transport.cc

@@ -135,7 +135,6 @@ struct inproc_transport final : public grpc_core::FilterStackTransport {
   void SetPollsetSet(grpc_stream* stream,
                      grpc_pollset_set* pollset_set) override;
   void PerformOp(grpc_transport_op* op) override;
-  grpc_endpoint* GetEndpoint() override;
 
   size_t SizeOfStream() const override;
   bool HackyDisableStreamOpBatchCoalescingInConnectedChannel() const override {
@@ -1214,8 +1213,6 @@ void inproc_transport::SetPollsetSet(grpc_stream* /*gs*/,
   // Nothing to do here
 }
 
-grpc_endpoint* inproc_transport::GetEndpoint() { return nullptr; }
-
 //******************************************************************************
 // Main inproc transport functions
 //

src/core/lib/transport/transport.h

@@ -565,9 +565,6 @@ class Transport : public InternallyRefCounted<Transport> {
     op->disconnect_with_error = error;
     PerformOp(op);
   }
-
-  // implementation of grpc_transport_get_endpoint
-  virtual grpc_endpoint* GetEndpoint() = 0;
 };
 
 class FilterStackTransport : public Transport {

test/core/channel/minimal_stack_is_minimal_test.cc

@@ -74,7 +74,6 @@ class FakeTransport final : public grpc_core::Transport {
   void SetPollset(grpc_stream*, grpc_pollset*) override {}
   void SetPollsetSet(grpc_stream*, grpc_pollset_set*) override {}
   void PerformOp(grpc_transport_op*) override {}
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
   void Orphan() override {}
 
  private:

test/core/server/xds_channel_stack_modifier_test.cc

@@ -84,7 +84,6 @@ class FakeTransport final : public Transport {
   void SetPollset(grpc_stream*, grpc_pollset*) override {}
   void SetPollsetSet(grpc_stream*, grpc_pollset_set*) override {}
   void PerformOp(grpc_transport_op*) override {}
-  grpc_endpoint* GetEndpoint() override { return nullptr; }
   void Orphan() override {}
 };
 }  // namespace