Revert "allow to only memmap one stream"

This reverts commit 9c487f5.

Author: JulesLebert

neo/rawio/tdtrawio.py

@@ -36,7 +36,7 @@
 class TdtRawIO(BaseRawIO):
     rawmode = 'one-dir'
 
-    def __init__(self, dirname='', sortname='', stream_name_neo=None):
+    def __init__(self, dirname='', sortname=''):
         """
         Initialize reader for one or multiple TDT data blocks.
 
@@ -48,9 +48,6 @@ def __init__(self, dirname='', sortname='', stream_name_neo=None):
             if sortname=='PLX', there should be a ./sort/PLX/*.SortResult file in the tdt block,
             which stores the sortcode for every spike
             Default: '', uses the original online sort.
-        stream_name (str):
-            If there are several streams, specify the stream name you want to load.
-            Default: None, load all streams.
 
 
         """
@@ -67,7 +64,6 @@ def __init__(self, dirname='', sortname='', stream_name_neo=None):
             raise ValueError(f'No data folder or file found for {dirname}')
 
         self.sortname = sortname
-        self.stream_name_neo = stream_name_neo
 
     def _source_name(self):
         return self.dirname
@@ -182,16 +178,12 @@ def _parse_header(self):
         self._sigs_t_start = {seg_index: {}
                               for seg_index in range(nb_segment)}  # key = seg_index then group_id
 
-        if self.stream_name_neo is not None:
-            keep = info_channel_groups['StoreName'].astype(str) == self.stream_name_neo 
-        else:
-            keep = info_channel_groups['TankEvType'] == EVTYPE_STREAM
-            
+        keep = info_channel_groups['TankEvType'] == EVTYPE_STREAM
         missing_sev_channels = []
         for stream_index, info in enumerate(info_channel_groups[keep]):
             self._sig_sample_per_chunk[stream_index] = info['NumPoints']
 
-            stream_name = info['StoreName'].astype(str)
+            stream_name = str(info['StoreName'])
             stream_id = f'{stream_index}'
             signal_streams.append((stream_name, stream_id))