Fix failing unit test

Author: phumthep

src/pownet/core/data_processor.py

@@ -68,13 +68,6 @@ def load_transmission_data(self) -> None:
             )
 
         # Generic transmission parameters for a power system
-        # Print files in get_database_dir()
-        print("DEBUGGING")
-        print(os.getcwd())
-        print(get_database_dir())
-        print(os.listdir(get_database_dir()))
-        print("End of debugging")
-
         self.transmission_params: dict = (
             pd.read_csv(
                 os.path.join(get_database_dir(), "transmission_params.csv"), header=0