diff --git a/docs/Doxyfile b/docs/Doxyfile
index 1dad40b..a994df6 100644
--- a/docs/Doxyfile
+++ b/docs/Doxyfile
@@ -67,7 +67,7 @@ PROJECT_LOGO           = logo.svg
 # when the HTML document is shown. Doxygen will copy the logo to the output
 # directory.
 
-PROJECT_ICON           =
+# PROJECT_ICON           =
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
 # into which the generated documentation will be written. If a relative path is
@@ -1462,7 +1462,7 @@ HTML_CODE_FOLDING      = YES
 # The default value is: YES.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_COPY_CLIPBOARD    = YES
+# HTML_COPY_CLIPBOARD    = YES
 
 # Doxygen stores a couple of settings persistently in the browser (via e.g.
 # cookies). By default these settings apply to all HTML pages generated by
@@ -1471,7 +1471,7 @@ HTML_COPY_CLIPBOARD    = YES
 # be stored separately.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_PROJECT_COOKIE    =
+# HTML_PROJECT_COOKIE    =
 
 # With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
 # shown in the various tree structured indices initially; the user can expand
diff --git a/docs/header.html b/docs/header.html
index fd44832..31880e9 100644
--- a/docs/header.html
+++ b/docs/header.html
@@ -1,4 +1,4 @@
-<!-- HTML header for doxygen 1.10.0-->
+<!-- HTML header for doxygen 1.9.8-->
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" lang="$langISO">
 <head>
@@ -8,9 +8,6 @@
 <meta name="viewport" content="width=device-width, initial-scale=1"/>
 <!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
 <!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
-<!--BEGIN PROJECT_ICON-->
-<link rel="icon" href="$relpath^$projecticon" type="image/x-icon" />
-<!--END PROJECT_ICON-->
 <link href="$relpath^tabs.css" rel="stylesheet" type="text/css"/>
 <!--BEGIN DISABLE_INDEX-->
   <!--BEGIN FULL_SIDEBAR-->
@@ -19,9 +16,6 @@
 <!--END DISABLE_INDEX-->
 <script type="text/javascript" src="$relpath^jquery.js"></script>
 <script type="text/javascript" src="$relpath^dynsections.js"></script>
-<!--BEGIN COPY_CLIPBOARD-->
-<script type="text/javascript" src="$relpath^clipboard.js"></script>
-<!--END COPY_CLIPBOARD-->
 $treeview
 $search
 $mathjax
@@ -56,7 +50,7 @@
  <tbody>
  <tr id="projectrow">
   <!--BEGIN PROJECT_LOGO-->
-  <td id="projectlogo"><img alt="Logo" src="$relpath^$projectlogo"$logosize/></td>
+  <td id="projectlogo"><img alt="Logo" src="$relpath^$projectlogo"/></td>
   <!--END PROJECT_LOGO-->
   <!--BEGIN PROJECT_NAME-->
   <td id="projectalign">
