remove unused python token parser method

wakatime/dependencies/python.py

@@ -49,9 +49,7 @@ class PythonParser(TokenParser):
                 self._process_import(token, content)
 
     def _process_operator(self, token, content):
-        if self.state is not None:
-            if content == '.':
-                self.nonpackage = True
+        pass
 
     def _process_punctuation(self, token, content):
         if content == '(':

wakatime/stats.py

@@ -234,7 +234,7 @@ def get_file_head(file_name):
     except:
         try:
             with open(file_name, 'r', encoding=sys.getfilesystemencoding()) as fh:
-                text = fh.read(512000)
+                text = fh.read(512000)  # pragma: nocover
         except:
             log.traceback('debug')
     return text