Fix XML syntax error

PowerEditor/installer/themes/Zenburn.xml

@@ -535,7 +535,6 @@ License:             GPL2
             <WordsStyle name="COMMENT BLOCK2" styleID="15" fgColor="7F9F7F" bgColor="3F3F3F" fontName="" fontStyle="2" fontSize="" />
             <WordsStyle name="COMMENT BLOCK3" styleID="16" fgColor="7F9F7F" bgColor="3F3F3F" fontName="" fontStyle="2" fontSize="" />
         </LexerType>
-        </LexerType>
         <LexerType name="hollywood" desc="Hollywood" ext="">
             <WordsStyle name="DEFAULT" styleID="0" fgColor="DCDCCC" bgColor="3F3F3F" fontName="" fontStyle="0" fontSize="" />
             <WordsStyle name="COMMENT" styleID="1" fgColor="7F9F7F" bgColor="3F3F3F" fontName="" fontStyle="0" fontSize="" />