[mod] since [8010] get_column_widths() return one result again

[8010] https://sourceforge.net/p/docutils/code/8010/
       docutils/docutils@eff936207

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

linuxdoc/rstFlatTable.py

@@ -135,11 +135,6 @@ def __init__(self, directive):
     def buildTableNode(self):
 
         colwidths    = self.directive.get_column_widths(self.max_cols)
-        if isinstance(colwidths, tuple):
-            # Since docutils 0.13, get_column_widths returns a (widths,
-            # colwidths) tuple, where widths is a string (i.e. 'auto').
-            # See https://sourceforge.net/p/docutils/patches/120/.
-            colwidths = colwidths[1]
         stub_columns = self.directive.options.get('stub-columns', 0)
         header_rows  = self.directive.options.get('header-rows', 0)