app-doc/mathjax-docs: Drop duplicate stabilize-allarches

Signed-off-by: Ulrich Müller <ulm@gentoo.org>

app-doc/mathjax-docs/metadata.xml

@@ -2,7 +2,6 @@
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <!-- maintainer-needed -->
-  <stabilize-allarches/>
   <longdescription lang="en">
   MathJax is an open-source JavaScript display engine for LaTeX and
   MathML that works in all modern browsers. It was designed with the
@@ -15,8 +14,8 @@
   easily. One simply includes MathJax and some mathematics in a web
   page, and MathJax does the rest.
   </longdescription>
+  <stabilize-allarches/>
   <upstream>
     <remote-id type="github">mathjax/MathJax-docs</remote-id>
   </upstream>
-  <stabilize-allarches/>
 </pkgmetadata>