ProjectExplorer: Remove ProcessParameters::resolveAll()

On all code paths, this was implicit in a ProcessParameters::setCommandLine()
which was on all code paths either called directly immediately before, or as
part of ProcessStep::setupProcessParameters().

With ProcessParameters::setCommandLine() as only user, this could be
inlined there. The effectiveWorkingDirectory() turned out to be out of
place and rather accidentally working there and was moved to
ProcessParameters::setWorkingDirectory().

Change-Id: I634f6086c2324e3cbecd3e5d50e22afc722abd3f
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/qmakeprojectmanager/qmakemakestep.cpp

@@ -162,7 +162,6 @@ bool QmakeMakeStep::init()
 
     pp->setEnvironment(makeEnvironment());
     pp->setCommandLine(makeCmd);
-    pp->resolveAll();
 
     auto rootNode = dynamic_cast<QmakeProFileNode *>(project()->rootProjectNode());
     QTC_ASSERT(rootNode, return false);