Remove ref to dead npactConstants.graphSpecDefaults
Remove ref to dead npactConstants.graphSpecDefaults

Follow on to fd4ca02 where this got removed

NProfileAnalysisComputationalTool/npact,victor-lin/npact,victor-lin/npact,victor-lin/npact,NProfileAnalysisComputationalTool/npact,victor-lin/npact,NProfileAnalysisComputationalTool/npact,victor-lin/npact,NProfileAnalysisComputationalTool/npact,NProfileAnalysisComputationalTool/npact