Remove spurious trailing whitespace

...introduced with 5187d3ae "Resolves: tdf#69042
- Add a 'What's New' infobar"

Change-Id: I7ffa28e996838e681d1ecc317b9c3af56f74bc5a
Reviewed-on: https://gerrit.libreoffice.org/72454
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

officecfg/registry/schema/org/openoffice/Setup.xcs

@@ -262,7 +262,7 @@
       </prop>
       <prop oor:name="ooSetupLastVersion" oor:type="xs:string" oor:nillable="true">
         <info>
-          <desc>Specifies the version number of the previously used product for 
+          <desc>Specifies the version number of the previously used product for
           whats-new comparison.</desc>
         </info>
         <value/>