Drop draft current-mode function from catalog

specifications/xslt-40/src/function-catalog.xml

@@ -537,47 +537,6 @@
       </fos:notes>
    </fos:function>
 
-   <fos:function name="current-mode">
-      <fos:signatures>
-         <fos:proto name="current-mode" return-type="xs:QName?"/>
-      </fos:signatures>
-      <fos:properties>
-         <fos:property>deterministic</fos:property>
-         <fos:property>focus-independent</fos:property>
-         <fos:property>context-dependent</fos:property>
-      </fos:properties>
-      <fos:summary>
-         <p>Returns the value of the <termref def="dt-current-mode"/>.</p>
-      </fos:summary>
-      <fos:rules>
-         <p>The function returns the name of the <termref def="dt-current-mode"/>. If the current mode
-            is <termref def="dt-absent"/>, or if it is the
-            <termref def="dt-unnamed-mode"/>, the function returns an empty sequence.</p>
-
-         <p>If the function is called while evaluating the <code>match</code> pattern of a template
-         rule, the function returns the name of the mode used in the calling <elcode>xsl:apply-templates</elcode>
-         instruction (or, if the pattern is evaluated in the course of an <elcode></elcode></p>
-         <p>During execution of an <elcode>xsl:result-document</elcode> instruction with an <code>href</code>
-            attribute, the current output URI changes to the absolute URI obtained by resolving the <termref def="dt-effective-value"/>
-            of the <code>href</code> attribute against the base output URI.</p>
-
-         <p>The current output URI is cleared (set to <termref def="dt-absent"/>) while evaluating stylesheet functions, 
-            dynamic function calls, evaluation of global variables, stylesheet parameters, and patterns. 
-            If the function is called when the current output URI is absent, the function returns the empty sequence.
-         </p>
-
-         <p>The current output URI may also be <termref def="dt-absent"/> in the event that a stylesheet is invoked without supplying a
-            <termref def="dt-base-output-uri"/>.</p>
-      </fos:rules>
-      <fos:notes>
-         <p>The current output URI is not cleared when evaluating a local variable, even though <elcode>xsl:result-document</elcode>
-            cannot be used while evaluating a local variable. 
-            The reason for this is to allow the value of <code>current-output-uri</code> to be set as the value of a 
-            tunnel parameter, so that the original
-            base output URI is accessible even when writing nested result documents.</p>
-      </fos:notes>
-   </fos:function>
-
    <fos:function name="regex-group">
       <fos:signatures>
          <fos:proto name="regex-group" return-type="xs:string">