Remove unneeded package reference

sohstationviewer/model/reftek_data/reftek.py

@@ -314,7 +314,7 @@ class RT130(GeneralData):
         :param path2file: absolute path to file
         """
         try:
-            rt130 = core.DecimatedReftek130.from_file(path2file)
+            rt130 = DecimatedReftek130.from_file(path2file)
         except Exception:
             fmt = traceback.format_exc()
             self.track_info(f"Skip file {path2file} can't be read "
@@ -357,7 +357,7 @@ class RT130(GeneralData):
                 self.log_data[cur_data_set_id]['SOH'] = []
             self.log_data[cur_data_set_id]['SOH'].append((d['time'], logs))
 
-    def read_eh_or_et_packet(self, rt130: core.DecimatedReftek130) -> None:
+    def read_eh_or_et_packet(self, rt130: DecimatedReftek130) -> None:
         """
         Files that contents EH or ET packets are data stream (DS and
             mass position (DS 9) files.
@@ -388,7 +388,7 @@ class RT130(GeneralData):
         self.get_mass_pos_data_and_waveform_data(
             rt130, data_stream, cur_data_set_id)
 
-    def get_ehet_in_log_data(self, rt130: core.DecimatedReftek130,
+    def get_ehet_in_log_data(self, rt130: DecimatedReftek130,
                              cur_data_set_id: Tuple[str, str]) -> None:
         """
         Read event header info to add to log_data['EHET']
@@ -413,7 +413,7 @@ class RT130(GeneralData):
                 (d['time'], logs))
 
     def get_mass_pos_data_and_waveform_data(
-            self, rt130: core.DecimatedReftek130, data_stream: int,
+            self, rt130: DecimatedReftek130, data_stream: int,
             cur_data_set_id: Tuple[str, str]) -> None:
         """
         Get mass_pos_data for the current data_set_id in DS 9.