downsize melgan test model size

TTS/tts/datasets/formatters.py

@@ -112,7 +112,6 @@ def ljspeech_test(root_path, meta_file):
     https://keithito.com/LJ-Speech-Dataset/"""
     txt_file = os.path.join(root_path, meta_file)
     items = []
-    speaker_name = "ljspeech"
     with open(txt_file, "r", encoding="utf-8") as ttf:
         for idx, line in enumerate(ttf):
             cols = line.split("|")

tests/vocoder_tests/test_melgan_train.py

@@ -19,7 +19,7 @@ config = MelganConfig(
     seq_len=2048,
     eval_split_size=1,
     print_step=1,
-    discriminator_model_params={"base_channels": 16, "max_channels": 256, "downsample_factors": [4, 4, 4]},
+    discriminator_model_params={"base_channels": 16, "max_channels": 64, "downsample_factors": [4, 4, 4]},
     print_eval=True,
     data_path="tests/data/ljspeech",
     output_path=output_path,