fhem.pl: revert the TimeSeries "looks_like_number" patch (Forum #92841)

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@21044 2b470e98-0d58-463d-a4d8-8e2adae1ed80

fhem.pl

@@ -4884,8 +4884,8 @@ readingsBulkUpdate($$$@)
       } else {
         require "TimeSeries.pm";
         $ts = TimeSeries->new( { method => $method, 
-                  autoreset=>(looks_like_number($duration) ? $duration:undef),
-                  holdTime =>(looks_like_number($holdTime) ? $holdTime:undef)});
+                  autoreset => $duration,
+                  holdTime => $holdTime } );
         $readings->{".ts"}= $ts;
         # access from command line:
         # { $defs{"myClient"}{READINGS}{"myValue"}{".ts"}{max} }