requestt #7379 Delete sflogo.php no longer used (since 2008)

Change-Id: I329e6bd9276b4c2fec02c819b4e6c72cf5f60307
Merge commit 'refs/changes/32/2932/2' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  requestt #7379 Delete sflogo.php no longer used (since 2008)

Change-Id: I949188c431c5b5404643939d8decf0e1c2fdacb0
This is Tuleap 7.4.99.4

Change-Id: Ia21891bc5391b85febf52a14b815df8ba74a12d2