lkl: tests: drop sleep before lklfuse unmount

The sleep appears to have been there since the initial tests were added.
It shouldn't be necessary so remove it.

Signed-off-by: David Disseldorp <ddiss@suse.de>

tools/lkl/tests/lklfuse.sh

@@ -8,7 +8,6 @@ cleanup()
 {
     set -e
 
-    sleep 1
     if type -P fusermount3 > /dev/null; then
         fusermount3 -u $dir
     else