remove warning

Author: h-mayorquin

neo/rawio/plexon2rawio/plexon2rawio.py

@@ -86,12 +86,7 @@ def __init__(self, filename, pl2_dll_file_path=None):
             pl2_dll_folder.mkdir(exist_ok=True)
             pl2_dll_file_path = pl2_dll_folder / file_name
 
-            if pl2_dll_file_path.exists():
-                # I think this warning should be removed
-                # Warnings should provide a solution but this is 
-                # just a reminder to the user of normal behavior
-                warnings.warn(f'Using cached plexon dll at {pl2_dll_file_path}')  
-            else:
+            if not pl2_dll_file_path.exists():
                 url = f'https://raw.githubusercontent.com/Neuralensemble/pypl2/master/bin/{file_name}'
                 dist = urlopen(url=url)