Remove extraneous >

Author: simonat2ndQuadrant

doc/src/sgml/mvcc.sgml

@@ -911,7 +911,7 @@ ERROR:  could not serialize access due to read/write dependencies among transact
         <para>
          Acquired by <command>CREATE TRIGGER</command> and many forms of
          <command>ALTER TABLE</command> (see <xref linkend="SQL-ALTERTABLE">).
-        </para>>
+        </para>
        </listitem>
       </varlistentry>