Remove deprecated methods

Deprecated functions which are not used anymore can be removed to make
code more clearer and improve maintainability

Related Task: [https://fs.golderweb.de/index.php?do=details&task_id=80 FS#80]

lib/redfam.py

@@ -325,22 +325,6 @@ class RedFamParser( RedFam ):
                                          self._beginning, self._ending,
                                          self._status )
 
-    @classmethod
-    @deprecated
-    def is_sectionheading( cls, line ):
-        """
-        Checks wether given line is a red_fam section heading
-
-        @param      str     line    String to check
-
-        @returns    bool            Returns True if it is a section heading
-        """
-
-        if cls.__sectionhead_pat.search( str(line) ):
-            return True
-        else:
-            return False
-
     @classmethod
     def is_section_redfam_cb( cls, heading ):
         """
@@ -438,48 +422,6 @@ class RedFamParser( RedFam ):
 
         return (beginning, ending)
 
-    @classmethod
-    @deprecated( 'extract_dates' )
-    def is_beginning( cls, line ):
-        """
-        Returns the first timestamp found in line, otherwise None
-
-        @param      str    line    String to search in
-
-        @returns    str            Timestamp, otherwise None
-        """
-
-        return cls.extract_dates( line )[0]
-
-    @classmethod
-    @deprecated( 'extract_dates' )
-    def is_ending( cls, line, isarchive=False ):
-        """
-        Returns the timestamp of done notice ( if one ), otherwise None
-
-        @param  line    String to search in
-        @type  line  str
-        @param  isarchive  If true skip searching done notice (on archivepages)
-        @type  isarchive  bool
-
-        @returns  Timestamp, otherwise None
-        @returntype  str
-        """
-
-        return cls.extract_dates( line )[1]
-
-    @classmethod
-    @deprecated( 'extract_dates' )
-    def is_ending2( cls, line ):
-        """
-        Returns the last timestamp found in line, otherwise None
-        @param      str    line    String to search in
-
-        @returns    str            Timestamp, otherwise None
-        """
-
-        return cls.extract_dates( line, True )[1]
-
 
 class RedFamWorker( RedFam ):
     """