Make GenericMakeStep not immutable

GenericMakeStep is currently immutable. This is quite annoying since
it's possible to create GenericMakeStep but it's not possible to remove
them.

Fix: make GenericMakeStep not immutable

Merge-request: 117
Reviewed-by: Thorbjørn Lindeijer <thorbjorn.lindeijer@nokia.com>
Reviewed-by: dt
Reviewed-by: Tobias Hunger

src/plugins/genericprojectmanager/genericmakestep.cpp

@@ -177,14 +177,7 @@ ProjectExplorer::BuildStepConfigWidget *GenericMakeStep::createConfigWidget()
 
 bool GenericMakeStep::immutable() const
 {
-    // Only make one GenericMakeStep immutable:
-    QList<BuildStep *> steps = buildConfiguration()->buildSteps();
-    int makestepCount = 0;
-    foreach (const BuildStep *bs, steps) {
-        if (qobject_cast<const GenericMakeStep *>(bs))
-            ++makestepCount;
-    }
-    return makestepCount <= 1;
+    return false;
 }
 
 bool GenericMakeStep::buildsTarget(const QString &target) const