iosdeploystep: remove unused code

Change-Id: Ic3f068f2619324bfb5eb674377ce55a362c2d919
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Qbs: Add --check-timestamps option to QbsBuildStep

Change-Id: Ieeaac68cde486458eef067fc1129ba11053759e8
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Qbs: Make "Reparse Qbs" force a reparsing

... even if Qt Creator thinks all is well.

Change-Id: I40fa61d51c8e18a389bedf7d8afb927bbb88acd5
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>