Fix scoping of imported function names

xproc/src/main/xml/specification.xml

@@ -3582,16 +3582,11 @@ declared more than once in the same scope.</error></para>
 <section>
 <title>Scoping of imported function names</title>
 
-<para>If functions can be imported with <tag>p:import-functions</tag>, the scope
-of the imported functions is to expressions that appear in elements and
-attributes that follow the <tag>p:import-functions</tag> element, in document
-order, in the pipeline document.</para>
-
-<para>If functions are imported in a <tag>p:library</tag>, they are also
-available in pipelines that import that library. The scope of the imported
-functions in the importing pipeline is the expressions that follow the
-<tag>p:import</tag> element that imports the library, in document order,
-in the importing pipeline document.</para>
+<para>The scope of function names imported with <tag>p:import-functions</tag> is
+limited to expressions that appear in elements and attributes that follow the
+<tag>p:import-function</tag> element, in document order, in the pipeline
+document.</para>
+
 </section>
 </section>