diff --git a/modules/audio_coding/acm2/acm_codec_database.cc b/modules/audio_coding/acm2/acm_codec_database.cc
index 879082cef0..cada80c061 100644
--- a/modules/audio_coding/acm2/acm_codec_database.cc
+++ b/modules/audio_coding/acm2/acm_codec_database.cc
@@ -298,7 +298,7 @@ int ACMCodecDB::CodecId(const CodecInst& codec_inst) {
 int ACMCodecDB::CodecId(const char* payload_name,
                         int frequency,
                         size_t channels) {
-  for (const CodecInst& ci : RentACodec::Database()) {
+  for (const CodecInst& ci : database_) {
     bool name_match = false;
     bool frequency_match = false;
     bool channels_match = false;
@@ -318,7 +318,7 @@ int ACMCodecDB::CodecId(const char* payload_name,
 
     if (name_match && frequency_match && channels_match) {
       // We have found a matching codec in the list.
-      return &ci - RentACodec::Database().data();
+      return &ci - database_;
     }
   }
 
diff --git a/modules/audio_coding/acm2/rent_a_codec.cc b/modules/audio_coding/acm2/rent_a_codec.cc
index d7457b8ad7..bfddc42bc9 100644
--- a/modules/audio_coding/acm2/rent_a_codec.cc
+++ b/modules/audio_coding/acm2/rent_a_codec.cc
@@ -29,7 +29,8 @@ absl::optional<RentACodec::CodecId> RentACodec::CodecIdByParams(
 
 absl::optional<CodecInst> RentACodec::CodecInstById(CodecId codec_id) {
   absl::optional<int> mi = CodecIndexFromId(codec_id);
-  return mi ? absl::optional<CodecInst>(Database()[*mi]) : absl::nullopt;
+  return mi ? absl::optional<CodecInst>(ACMCodecDB::database_[*mi])
+            : absl::nullopt;
 }
 
 absl::optional<RentACodec::CodecId> RentACodec::CodecIdByInst(
@@ -55,20 +56,6 @@ absl::optional<CodecInst> RentACodec::CodecInstByParams(
   return ci;
 }
 
-absl::optional<bool> RentACodec::IsSupportedNumChannels(CodecId codec_id,
-                                                        size_t num_channels) {
-  auto i = CodecIndexFromId(codec_id);
-  return i ? absl::optional<bool>(
-                 ACMCodecDB::codec_settings_[*i].channel_support >=
-                 num_channels)
-           : absl::nullopt;
-}
-
-rtc::ArrayView<const CodecInst> RentACodec::Database() {
-  return rtc::ArrayView<const CodecInst>(ACMCodecDB::database_,
-                                         NumberOfCodecs());
-}
-
 absl::optional<NetEqDecoder> RentACodec::NetEqDecoderFromCodecId(
     CodecId codec_id,
     size_t num_channels) {
diff --git a/modules/audio_coding/acm2/rent_a_codec.h b/modules/audio_coding/acm2/rent_a_codec.h
index afac3b1774..2cf1c6e18c 100644
--- a/modules/audio_coding/acm2/rent_a_codec.h
+++ b/modules/audio_coding/acm2/rent_a_codec.h
@@ -132,11 +132,6 @@ struct RentACodec {
     return payload_type >= 0 && payload_type <= 127;
   }
 
-  static rtc::ArrayView<const CodecInst> Database();
-
-  static absl::optional<bool> IsSupportedNumChannels(CodecId codec_id,
-                                                     size_t num_channels);
-
   static absl::optional<NetEqDecoder> NetEqDecoderFromCodecId(
       CodecId codec_id,
       size_t num_channels);