diff --git a/test/torchcodec/decoders.py b/test/torchcodec/decoders.py
deleted file mode 100644
index a1f0433805..0000000000
--- a/test/torchcodec/decoders.py
+++ /dev/null
@@ -1,17 +0,0 @@
-from types import SimpleNamespace
-
-import torchaudio_unittest.common_utils.wav_utils as wav_utils
-
-# See corresponding [TorchCodec test dependency mocking hack] note in
-# conftest.py
-
-
-class AudioDecoder:
-    def __init__(self, uri):
-        self.uri = uri
-        data, sample_rate = wav_utils.load_wav(self.uri)
-        self.metadata = SimpleNamespace(sample_rate=sample_rate)
-        self.data = data
-
-    def get_all_samples(self):
-        return SimpleNamespace(data=self.data)
diff --git a/test/torchcodec/encoders.py b/test/torchcodec/encoders.py
deleted file mode 100644
index d81cc5aa84..0000000000
--- a/test/torchcodec/encoders.py
+++ /dev/null
@@ -1,15 +0,0 @@
-from types import SimpleNamespace
-
-import torchaudio_unittest.common_utils.wav_utils as wav_utils
-
-# See corresponding [TorchCodec test dependency mocking hack] note in
-# conftest.py
-
-
-class AudioEncoder:
-    def __init__(self, data, sample_rate):
-        self.data = data
-        self.metadata = SimpleNamespace(sample_rate=sample_rate)
-
-    def to_file(self, uri, bit_rate=None):
-        return wav_utils.save_wav(uri, self.data, self.metadata.sample_rate)