RTA is using different means to install Squish for RTA tests, no need
to do it in general provisioning.
Change-Id: I4858a282ad7a0b1412f6dd0f4876109fe54a4c88
Reviewed-by: Tero Heikkinen <tero.heikkinen@qt.io>
Reviewed-by: Jukka Jokiniva <jukka.jokiniva@qt.io>
(cherry picked from commit 4bff151490)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Reviewed-by: Aku Pietikäinen <aku.pietikainen@qt.io>
622385a2ba