classes: Drop now unneeded update_data calls

Now that the datastore works dynamically we don't need the update_data calls
so we can just remove them. They're not actually done anything at all for
a while.

(From OE-Core rev: 8de0c5d3bd01919e2bf0394f9c485936d6098cec)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/systemd-boot.bbclass

@@ -103,7 +103,6 @@ python build_efi_cfg() {
         except OSError:
             bb.fatal('Unable to open %s' % entryfile)
         localdata.setVar('OVERRIDES', label + ':' + overrides)
-        bb.data.update_data(localdata)
 
         entrycfg.write('title %s\n' % label)
         entrycfg.write('linux /vmlinuz\n')