Fix no-op RelayoutPerfTest

The test has lost its functionality since [1].
Because the relayout invocation will be skipped if the
sequence number is old.

[1]: Ifb365789fa08103773fd3180e486ba1d92042fc5

Bug: 206872204
Test: atest RelayoutPerfTest
Change-Id: Ic8eb77a13a27a6c92279794cd7ed1981e1b03560
1 file changed