doc: Simplify handling of variablelists in XSLT build

The previously used custom template is no longer necessary because
parameters provided by the standard style sheet can achieve the same
outcome.

doc/src/sgml/stylesheet-common.xsl

@@ -38,6 +38,8 @@
 <xsl:param name="refentry.xref.manvolnum" select="0"/>
 <xsl:param name="formal.procedures" select="0"></xsl:param>
 <xsl:param name="punct.honorific" select="''"></xsl:param>
+<xsl:param name="variablelist.term.break.after">1</xsl:param>
+<xsl:param name="variablelist.term.separator"></xsl:param>
 
 
 <!-- Change display of some elements -->

doc/src/sgml/stylesheet.xsl

@@ -36,18 +36,6 @@
   <xsl:call-template name="inline.monoseq"/>
 </xsl:template>
 
-<!--
-  Format multiple terms in varlistentry vertically, instead
-  of comma-separated.
- -->
-
-<xsl:template match="varlistentry/term[position()!=last()]">
-  <span class="term">
-    <xsl:call-template name="anchor"/>
-    <xsl:apply-templates/>
-  </span><br/>
-</xsl:template>
-
 
 <!-- table of contents configuration -->