fix #7224: ui: utils: show memory usage above 100% correctly

render_mem_usage_percent() treated any value above 1 as a byte count
and recalculated the percentage from 'mem' and 'maxmem'. But the memory
usage ratio of a guest can legitimately exceed 1, for example when the
reported usage is the host-side memory of the QEMU process, which
includes its own overhead. In the reported case, 'mem' was 2222472192
with a 'maxmem' of 2147483648, so the ratio of about 1.035 got taken as
bytes and the search and resource grids showed 0.0 % instead of 103.5 %.

All users of the renderer now pass the usage as a ratio, so drop the
bytes fallback and always render the value as percentage.

Signed-off-by: Michal Fox <me@dualfroz.com>

www/manager6/Utils.js

@@ -1207,16 +1207,6 @@ Ext.define('PVE.Utils', {
             if (!Ext.isNumeric(value) || value === -1) {
                 return '';
             }
-            if (value > 1) {
-                // we got no percentage but bytes
-                let mem = value;
-                let maxmem = record.data.maxmem;
-                if (!record.data.uptime || maxmem === 0 || !Ext.isNumeric(mem)) {
-                    return '';
-                }
-
-                return ((mem * 100) / maxmem).toFixed(1) + ' %';
-            }
             return (value * 100).toFixed(1) + ' %';
         },