fix(gui): remove orphaned HeatMapRenderer from stub file

Signed-off-by: alokkumardalei-wq <alokkumardalei2@gmail.com>

Author: alokkumardalei-wq

src/gui/src/stub_heatMap.cpp

@@ -35,8 +35,6 @@ HeatMapDataSource::HeatMapDataSource(utl::Logger* logger,
       reverse_log_(false),
       show_numbers_(false),
       show_legend_(false),
-      renderer_(nullptr),
-      setup_(nullptr),
       color_generator_(SpectrumGenerator(100.0))
 {
 }
@@ -193,29 +191,6 @@ double GlobalRoutingDataSource::getGridYSize() const
 
 //////////
 
-HeatMapRenderer::HeatMapRenderer(HeatMapDataSource& datasource)
-    : datasource_(datasource), first_paint_(true)
-{
-}
-
-void HeatMapRenderer::drawObjects(Painter& painter)
-{
-}
-
-std::string HeatMapRenderer::getSettingsGroupName()
-{
-  return kGroupnamePrefix;
-}
-
-Renderer::Settings HeatMapRenderer::getSettings()
-{
-  return {};
-}
-
-void HeatMapRenderer::setSettings(const Renderer::Settings& settings)
-{
-}
-
 //////////
 PowerDensityDataSource::PowerDensityDataSource(sta::dbSta* sta,
                                                utl::Logger* logger)