ProjectNodes: Refactor runConfigurationsFor()

Rename to runConfigurations() and remove the node argument which is
available as 'this'. Adjust const-ness of node argument in
RunConfigurationFactory::runConfigurationsForNode

Change-Id: Icb63e96a305152f90135a2656536de2581faafaf
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

src/plugins/autotoolsprojectmanager/autotoolsprojectnode.cpp

@@ -103,9 +103,3 @@ bool AutotoolsProjectNode::renameFile(const QString &filePath,
     Q_UNUSED(newFilePath);
     return false;
 }
-
-QList<RunConfiguration *> AutotoolsProjectNode::runConfigurationsFor(Node *node)
-{
-    Q_UNUSED(node);
-    return QList<RunConfiguration *>();
-}