Remove the grapher's trackSliceCache
Remove the grapher's trackSliceCache

No really this isn't a good idea. Having this cache distributed across a
hundred separate graphers that might be displaying the same row (popup
windows and main, multiple popups) is just a nightmare for
cache-coherency. since trackslice generally takes <= 2ms it's not
helping much either

NProfileAnalysisComputationalTool/npact,NProfileAnalysisComputationalTool/npact,NProfileAnalysisComputationalTool/npact,NProfileAnalysisComputationalTool/npact,NProfileAnalysisComputationalTool/npact