Get rid of special "EndOfBlock" format in python highlighter

Change-Id: Ie02d3ae02b2453b33a3c779307f6f44348e2d0cd
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/pythoneditor/pythonscanner.cpp

@@ -50,7 +50,7 @@ FormatToken Scanner::read()
 {
     setAnchor();
     if (isEnd())
-        return FormatToken(Format_EndOfBlock, anchor(), 0);
+        return FormatToken();
 
     State state;
     QChar saved;