Fixes a couple of minor warnings (#4707)

Author: alejoe91

src/spikeinterface/core/binaryrecordingextractor.py

@@ -156,17 +156,6 @@ def get_binary_description(self):
         )
         return d
 
-    def __del__(self):
-        """
-        Ensures that all segment resources are properly cleaned up when this recording extractor is deleted.
-        Closes any open file handles in the recording segments.
-        """
-        # Close all recording segments
-        for segment in self.segments:
-            # This will trigger the __del__ method of the BinaryRecordingSegment
-            # which will close the file handle
-            del segment
-
 
 BinaryRecordingExtractor.write_recording.__doc__ = BinaryRecordingExtractor.write_recording.__doc__.format(
     _shared_job_kwargs_doc

src/spikeinterface/postprocessing/template_similarity.py

@@ -341,9 +341,10 @@ def _compute_similarity_matrix_numba(
             tgt_sliced = other_templates_array[:, num_shifts + shift : num_samples - num_shifts + shift]
 
             for i in prange(num_templates):
-                src_template = src_sliced[i]
-                overlapping_ids = overlapping_j_list[i]
-                overlapping_chs = active_channels_list[i]
+                i_ = np.int64(i)
+                src_template = src_sliced[i_]
+                overlapping_ids = overlapping_j_list[i_]
+                overlapping_chs = active_channels_list[i_]
 
                 for pair_idx in range(len(overlapping_ids)):
                     j = np.uint16(overlapping_ids[pair_idx])