LU-18676 tests: enable sanity-quota_49

LU-18676 tests: enable sanity-quota_49

The fix "LU-18676 tests: random write to set file size"
has been landed, so re-enable the test.

Fixes: 149657180e ("LU-18676 tests: random write to set file size")
Test-Parameters: trivial testlist=sanity-quota fstype=zfs
Test-Parameters: testlist=sanity-quota fstype=zfs env=ONLY=49,ONLY_REPEAT=20
Signed-off-by: Sergey Cheremencev <scherementsev@ddn.com>
Change-Id: Ie3171cff03ce957cc88efe81b4c837a1872b139b
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/57997
Tested-by: Maloo <maloo@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>