Fix LeAudioCodecProvider failing offload setting file parsing

ParseFromLeAudioOffloadSettingFile() fails when `GetLeAudioCodecCapabilities()`
was already called in the past and `leAudioCodecCapabilities` vector is already
populated. That makes some of the VTS tests fail on
`IsOffloadOutputProviderInfoSupported()` and just return and PASS  without
actually checking enything.

The doubtful checks check variables set at parsed content verification,
and should not prevent us from parsing the file again.

Bug: 319090769
Test: atest VtsHalBluetoothAudioTargetTest
Change-Id: Iab6235b5d265bb254ae6075b8c32d0eae0fc1829

bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.cpp

@@ -43,9 +43,6 @@ static bool isInvalidFileContent = false;
 
 std::optional<setting::LeAudioOffloadSetting>
 BluetoothLeAudioCodecsProvider::ParseFromLeAudioOffloadSettingFile() {
-  if (!leAudioCodecCapabilities.empty() || isInvalidFileContent) {
-    return std::nullopt;
-  }
   auto le_audio_offload_setting =
       setting::readLeAudioOffloadSetting(kLeAudioCodecCapabilitiesFile);
   if (!le_audio_offload_setting.has_value()) {