ProjectExplorer: Set up hack to funnel information to buildstep ctors

For now, store most of BuildInfo in the BuildConfiguration. This will
allow accessing it in the BuildStep ctors so the BuildSteps can
be fully setup without polishing afterwards (as currently done
in the main build steps of the three buildsystems, and Nim)

This in meant to be temporary to a large degree.

Change-Id: If6ade6052f4b96670995399ae97ef7d2313f632a
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/autotoolsprojectmanager/autotoolsbuildconfiguration.cpp

@@ -60,9 +60,9 @@ AutotoolsBuildConfiguration::AutotoolsBuildConfiguration(Target *parent, Core::I
     setConfigWidgetDisplayName(tr("Autotools Manager"));
 }
 
-void AutotoolsBuildConfiguration::initialize(const BuildInfo &info)
+void AutotoolsBuildConfiguration::initialize()
 {
-    BuildConfiguration::initialize(info);
+    BuildConfiguration::initialize();
 
     BuildStepList *buildSteps = stepList(BUILDSTEPS_BUILD);
 
@@ -111,11 +111,5 @@ QList<BuildInfo> AutotoolsBuildConfigurationFactory::availableBuilds
     return {info};
 }
 
-BuildConfiguration::BuildType AutotoolsBuildConfiguration::buildType() const
-{
-    // TODO: Should I return something different from Unknown?
-    return Unknown;
-}
-
 } // Internal
 } // AutotoolsProjectManager