Typo in docs

Author: hosseinmoein

docs/HTML/ConfIntervalVisitor.html

@@ -56,8 +56,6 @@
 <span class="line_wrapper"><span style="color:#800000; font-weight:bold; ">using</span> coni_v <span style="color:#808030; ">=</span> ConfIntervalVisitor<span style="color:#800080; ">&lt;</span>T<span style="color:#808030; ">,</span> I<span style="color:#800080; ">&gt;</span><span style="color:#800080; ">;</span></span>
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         This is a "single action visitor", meaning it is passed the whole data vector in one call and you must use the single_act_visit() interface.<BR><BR>