diff --git a/fastpair/internal/base/BUILD b/fastpair/internal/base/BUILD
index c8a85e15..c65aafc2 100644
--- a/fastpair/internal/base/BUILD
+++ b/fastpair/internal/base/BUILD
@@ -18,19 +18,6 @@ cc_library(
     ],
 )
 
-cc_library(
-    name = "base",
-    srcs = [
-    ],
-    hdrs = [
-        "observer_list.h",
-    ],
-    visibility = [
-        "//fastpair:__subpackages__",
-    ],
-    deps = ["@com_google_absl//absl/container:flat_hash_set"],
-)
-
 cc_test(
     name = "base_test",
     size = "small",
diff --git a/fastpair/internal/base/observer_list.h b/fastpair/internal/base/observer_list.h
deleted file mode 100644
index cb6e8556..00000000
--- a/fastpair/internal/base/observer_list.h
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2022 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef THIRD_PARTY_NEARBY_FASTPAIR_INTERNAL_BASE_OBSERVER_LIST_H_
-#define THIRD_PARTY_NEARBY_FASTPAIR_INTERNAL_BASE_OBSERVER_LIST_H_
-
-#include <string>
-#include <vector>
-
-#include "absl/container/flat_hash_set.h"
-
-namespace nearby {
-namespace fastpair {
-
-template <class ObserverType>
-class ObserverList {
- public:
-  using iterator = typename absl::flat_hash_set<ObserverType*>::iterator;
-  using const_iterator =
-      typename absl::flat_hash_set<ObserverType*>::const_iterator;
-
-  void AddObserver(ObserverType* observer) { observers_.emplace(observer); }
-
-  void RemoveObserver(ObserverType* observer) { observers_.erase(observer); }
-
-  bool HasObserver(ObserverType* observer) {
-    return observers_.contains(observer);
-  }
-
-  void Clear() { observers_.clear(); }
-
-  bool empty() const { return observers_.empty(); }
-
-  int size() const { return observers_.size(); }
-
-  // Supports iterators
-  iterator begin() { return observers_.begin(); }
-  iterator end() { return observers_.end(); }
-  const_iterator begin() const { return observers_.begin(); }
-  const_iterator end() const { return observers_.end(); }
-
- private:
-  absl::flat_hash_set<ObserverType*> observers_;
-};
-
-}  // namespace fastpair
-}  // namespace nearby
-
-#endif  // THIRD_PARTY_NEARBY_FASTPAIR_INTERNAL_BASE_OBSERVER_LIST_H_
diff --git a/fastpair/internal/impl/windows/BUILD b/fastpair/internal/impl/windows/BUILD
index 31619c93..add99165 100644
--- a/fastpair/internal/impl/windows/BUILD
+++ b/fastpair/internal/impl/windows/BUILD
@@ -45,7 +45,6 @@ cc_library(
     visibility = ["//fastpair:__subpackages__"],
     deps = [
         "//fastpair/internal/api:platform",
-        "//fastpair/internal/base",
         "//fastpair/internal/base:bluetooth_address",
         "//internal/platform:base",
         "//internal/platform:logging",
diff --git a/fastpair/internal/public/BUILD b/fastpair/internal/public/BUILD
index 9ac346e7..9f561a84 100644
--- a/fastpair/internal/public/BUILD
+++ b/fastpair/internal/public/BUILD
@@ -32,7 +32,6 @@ cc_library(
         ":device_info",
         ":types",
         "//fastpair/internal/api:platform",
-        "//fastpair/internal/base",  # fixdeps: keep
         "//fastpair/internal/impl/g3:platform_g3",
         "//internal/platform:logging",
         "//internal/platform:types",