[Doc][TTS] CosyVoice3 online docs + residual TTS yaml cleanup + remove VoxCPM v1 (#3748)

Signed-off-by: Yueqian Lin <linyueqian@outlook.com>

tests/engine/test_arg_utils.py

@@ -232,24 +232,6 @@ def test_stage_configs_path_field():
     assert args.stage_configs_path == "/some/path.yaml"
 
 
-def test_voxcpm_model_arch_injects_model_type_override(mocker):
-    """Ensure VoxCPM model_arch injects hf_overrides for config resolution."""
-    mocker.patch.object(OmniEngineArgs, "_ensure_omni_models_registered", return_value=True)
-    mocker.patch.object(OmniEngineArgs, "_patch_empty_hf_config")
-    mocker.patch.object(EngineArgs, "create_model_config", return_value=Mock())
-    mocker.patch.object(OmniModelConfig, "from_vllm_model_config", return_value=Mock())
-
-    args = OmniEngineArgs(
-        model="OpenBMB/VoxCPM1.5",
-        model_arch="VoxCPMForConditionalGeneration",
-    )
-    args.create_model_config()
-
-    assert args.hf_overrides["architectures"] == ["VoxCPMForConditionalGeneration"]
-    assert args.hf_overrides["model_type"] == "voxcpm"
-    args._patch_empty_hf_config.assert_called_once_with("voxcpm")
-
-
 def test_strip_single_engine_args():
     """_strip_single_engine_args should remove EngineArgs fields but keep omni fields."""
     kwargs = {