[clearcut] Remove unused symlinks/aliases

Bug: 38558
Change-Id: Ic8af0142e2096961629dba9cc6b52cdfcc7d09ac
diff --git a/third_party/clearcut/BUILD.gn b/third_party/clearcut/BUILD.gn
deleted file mode 100644
index 929c443..0000000
--- a/third_party/clearcut/BUILD.gn
+++ /dev/null
@@ -1,9 +0,0 @@
-# Copyright 2018 The Fuchsia Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-group("clearcut") {
-  public_deps = [
-    "$cobalt_root/src/lib/clearcut",
-  ]
-}
diff --git a/third_party/clearcut/http_client.h b/third_party/clearcut/http_client.h
deleted file mode 100644
index d27c7ca..0000000
--- a/third_party/clearcut/http_client.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef COBALT_THIRD_PARTY_CLEARCUT_HTTP_CLIENT_H_
-#define COBALT_THIRD_PARTY_CLEARCUT_HTTP_CLIENT_H_
-
-#include "src/lib/clearcut/http_client.h"
-#include "src/lib/clearcut/uploader.h"
-
-namespace clearcut {
-
-using cobalt::lib::clearcut::ClearcutUploader;
-using cobalt::lib::clearcut::HTTPClient;
-using cobalt::lib::clearcut::HTTPRequest;
-using cobalt::lib::clearcut::HTTPResponse;
-
-}  // namespace clearcut
-
-#endif  // COBALT_THIRD_PARTY_CLEARCUT_HTTP_CLIENT_H_
diff --git a/third_party/clearcut/uploader.h b/third_party/clearcut/uploader.h
deleted file mode 100644
index d77e35e..0000000
--- a/third_party/clearcut/uploader.h
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef COBALT_SRC_LIB_UTIL_CLEARCUT_UPLOADER_H_
-#define COBALT_SRC_LIB_UTIL_CLEARCUT_UPLOADER_H_
-
-#include <chrono>
-#include <memory>
-#include <vector>
-
-#include "src/lib/clearcut/clearcut.pb.h"
-#include "src/lib/clearcut/http_client.h"
-#include "src/lib/util/clock.h"
-#include "src/lib/util/sleeper.h"
-#include "src/lib/util/status.h"
-#include "third_party/abseil-cpp/absl/strings/escaping.h"
-#include "third_party/statusor/statusor.h"
-
-namespace cobalt::lib::clearcut {
-
-static const int32_t kFuchsiaClientType = 17;
-static const int32_t kMaxRetries = 8;  // Wait between tries: 0.25s 0.5.s 1s 2s 4s 8s 16s
-static const int64_t kInitialBackoffMillis = 250;
-
-// A ClearcutUploader sends events to clearcut using the given HTTPClient.
-//
-// Note: This class is not threadsafe.
-class ClearcutUploader {
- public:
-  // url: The URL of the Clearcut server to which POST requests should be sent.
-  //
-  // client: An implementation of HTTPClient to use.
-  //
-  // upload_timeout_millis: If a positive value is specified then this number of milliseconds
-  //  will be used as the HTTP request timeout. Otherwise no timeout will be used.
-  //
-  // initial_backoff_millis: The initial value to use for exponential backoff, in milliseconds.
-  //   This is used when the ClearcutUploader retries on failures. Optionally override the default.
-  //   Mostly useful for tests.
-  //
-  // steady_clock: Optionally replace the system steady clock. Mostly useful for tests.
-  //
-  // sleeper: Optionally replace the system sleep. Mostly useful for tests.
-  ClearcutUploader(std::string url, std::unique_ptr<HTTPClient> client,
-                   int64_t upload_timeout_millis = 0,
-                   int64_t initial_backoff_millis = kInitialBackoffMillis,
-                   std::unique_ptr<cobalt::util::SteadyClockInterface> steady_clock =
-                       std::make_unique<cobalt::util::SteadyClock>(),
-                   std::unique_ptr<cobalt::util::SleeperInterface> sleeper =
-                       std::make_unique<cobalt::util::Sleeper>());
-
-  // Uploads the |log_request|  with retries.
-  Status UploadEvents(LogRequest *log_request, int32_t max_retries = kMaxRetries);
-
- private:
-  // Tries once to upload |log_request|.
-  Status TryUploadEvents(LogRequest *log_request, std::chrono::steady_clock::time_point deadline);
-
-  const std::string url_;
-  const std::unique_ptr<HTTPClient> client_;
-  const std::chrono::milliseconds upload_timeout_;
-  const std::chrono::milliseconds initial_backoff_;
-
-  const std::unique_ptr<cobalt::util::SteadyClockInterface> steady_clock_;
-  const std::unique_ptr<cobalt::util::SleeperInterface> sleeper_;
-
- protected:
-  friend class UploaderTest;
-
-  // When we get a next_request_wait_millis from the clearcut server, we set
-  // this value to now() + next_request_wait_millis.
-  std::chrono::steady_clock::time_point pause_uploads_until_;
-};
-
-}  // namespace cobalt::lib::clearcut
-
-#endif  // COBALT_SRC_LIB_UTIL_CLEARCUT_UPLOADER_H_