Remove unused ConvertWallTimeToQuicTime().

PiperOrigin-RevId: 518299042

build/source_list.bzl

diff --git a/build/source_list.bzl b/build/source_list.bzl
index 749ab21..fa0436c 100644
--- a/build/source_list.bzl
+++ b/build/source_list.bzl
@@ -612,7 +612,6 @@
     "quic/core/quic_bandwidth.cc",
     "quic/core/quic_buffered_packet_store.cc",
     "quic/core/quic_chaos_protector.cc",
-    "quic/core/quic_clock.cc",
     "quic/core/quic_coalesced_packet.cc",
     "quic/core/quic_config.cc",
     "quic/core/quic_connection.cc",

build/source_list.gni

diff --git a/build/source_list.gni b/build/source_list.gni
index 69ef202..4ed9659 100644
--- a/build/source_list.gni
+++ b/build/source_list.gni
@@ -612,7 +612,6 @@
     "src/quiche/quic/core/quic_bandwidth.cc",
     "src/quiche/quic/core/quic_buffered_packet_store.cc",
     "src/quiche/quic/core/quic_chaos_protector.cc",
-    "src/quiche/quic/core/quic_clock.cc",
     "src/quiche/quic/core/quic_coalesced_packet.cc",
     "src/quiche/quic/core/quic_config.cc",
     "src/quiche/quic/core/quic_connection.cc",

build/source_list.json

diff --git a/build/source_list.json b/build/source_list.json
index aec8a99..4588b18 100644
--- a/build/source_list.json
+++ b/build/source_list.json
@@ -611,7 +611,6 @@
     "quiche/quic/core/quic_bandwidth.cc",
     "quiche/quic/core/quic_buffered_packet_store.cc",
     "quiche/quic/core/quic_chaos_protector.cc",
-    "quiche/quic/core/quic_clock.cc",
     "quiche/quic/core/quic_coalesced_packet.cc",
     "quiche/quic/core/quic_config.cc",
     "quiche/quic/core/quic_connection.cc",

quiche/quic/core/quic_clock.cc

diff --git a/quiche/quic/core/quic_clock.cc b/quiche/quic/core/quic_clock.cc
deleted file mode 100644
index 571dc59..0000000
--- a/quiche/quic/core/quic_clock.cc
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "quiche/quic/core/quic_clock.h"
-
-#include <limits>
-
-#include "quiche/quic/platform/api/quic_logging.h"
-
-namespace quic {
-
-QuicTime QuicClock::ConvertWallTimeToQuicTime(
-    const QuicWallTime& walltime) const {
-
-  //     ..........................
-  //     |            |           |
-  // unix epoch   |walltime|   WallNow()
-  //     ..........................
-  //            |     |           |
-  //     clock epoch  |         Now()
-  //               result
-  //
-  // result = Now() - (WallNow() - walltime)
-  return Now() - QuicTime::Delta::FromMicroseconds(
-                     WallNow()
-                         .Subtract(QuicTime::Delta::FromMicroseconds(
-                             walltime.ToUNIXMicroseconds()))
-                         .ToUNIXMicroseconds());
-}
-
-}  // namespace quic

quiche/quic/core/quic_clock.h

diff --git a/quiche/quic/core/quic_clock.h b/quiche/quic/core/quic_clock.h
index 69aed4e..5e5fd5b 100644
--- a/quiche/quic/core/quic_clock.h
+++ b/quiche/quic/core/quic_clock.h
@@ -35,10 +35,6 @@
   // different clocks.
   virtual QuicWallTime WallNow() const = 0;
 
-  // Converts |walltime| to a QuicTime relative to this clock's epoch.
-  virtual QuicTime ConvertWallTimeToQuicTime(
-      const QuicWallTime& walltime) const;
-
  protected:
   // Creates a new QuicTime using |time_us| as the internal value.
   QuicTime CreateTimeFromMicroseconds(uint64_t time_us) const {

quiche/quic/core/quic_default_clock.cc

diff --git a/quiche/quic/core/quic_default_clock.cc b/quiche/quic/core/quic_default_clock.cc
index 1418efb..208687b 100644
--- a/quiche/quic/core/quic_default_clock.cc
+++ b/quiche/quic/core/quic_default_clock.cc
@@ -23,9 +23,4 @@
   return QuicWallTime::FromUNIXMicroseconds(absl::GetCurrentTimeNanos() / 1000);
 }
 
-QuicTime QuicDefaultClock::ConvertWallTimeToQuicTime(
-    const QuicWallTime& walltime) const {
-  return CreateTimeFromMicroseconds(walltime.ToUNIXMicroseconds());
-}
-
 }  // namespace quic

quiche/quic/core/quic_default_clock.h

diff --git a/quiche/quic/core/quic_default_clock.h b/quiche/quic/core/quic_default_clock.h
index 96fec75..64b89dd 100644
--- a/quiche/quic/core/quic_default_clock.h
+++ b/quiche/quic/core/quic_default_clock.h
@@ -25,8 +25,6 @@
   QuicTime ApproximateNow() const override;
   QuicTime Now() const override;
   QuicWallTime WallNow() const override;
-  QuicTime ConvertWallTimeToQuicTime(
-      const QuicWallTime& walltime) const override;
 };
 
 }  // namespace quic