Move QuicClock to third_party/quic/core.

It has never had a platform impl, and thus should not be in quic/platform/api.

gfe-relnote: n/a (no functional change)
PiperOrigin-RevId: 294522346
Change-Id: Ibba0760f4a5a8c9a59c5eb3796b17f11f8a1a87d
diff --git a/quic/core/congestion_control/cubic_bytes.h b/quic/core/congestion_control/cubic_bytes.h
index 2bbd04c..0e174a8 100644
--- a/quic/core/congestion_control/cubic_bytes.h
+++ b/quic/core/congestion_control/cubic_bytes.h
@@ -11,9 +11,9 @@
 #include <cstdint>
 
 #include "net/third_party/quiche/src/quic/core/quic_bandwidth.h"
+#include "net/third_party/quiche/src/quic/core/quic_clock.h"
 #include "net/third_party/quiche/src/quic/core/quic_connection_stats.h"
 #include "net/third_party/quiche/src/quic/core/quic_time.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_clock.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
 
 namespace quic {
diff --git a/quic/core/congestion_control/send_algorithm_interface.h b/quic/core/congestion_control/send_algorithm_interface.h
index 33ab222..a049e67 100644
--- a/quic/core/congestion_control/send_algorithm_interface.h
+++ b/quic/core/congestion_control/send_algorithm_interface.h
@@ -13,13 +13,13 @@
 
 #include "net/third_party/quiche/src/quic/core/crypto/quic_random.h"
 #include "net/third_party/quiche/src/quic/core/quic_bandwidth.h"
+#include "net/third_party/quiche/src/quic/core/quic_clock.h"
 #include "net/third_party/quiche/src/quic/core/quic_config.h"
 #include "net/third_party/quiche/src/quic/core/quic_connection_stats.h"
 #include "net/third_party/quiche/src/quic/core/quic_packets.h"
 #include "net/third_party/quiche/src/quic/core/quic_time.h"
 #include "net/third_party/quiche/src/quic/core/quic_types.h"
 #include "net/third_party/quiche/src/quic/core/quic_unacked_packet_map.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_clock.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
 
 namespace quic {