[FEATURE] Remove c++ heatmap plugin

No longer required as plugin has been ported to analysis lib
with processing frontend

Marked as feature for docs + changelog notices

debian/qgis.install

@@ -8,7 +8,6 @@ usr/lib/qgis/plugins/librasterterrainplugin.so
 usr/lib/qgis/plugins/libspatialqueryplugin.so
 usr/lib/qgis/plugins/libofflineeditingplugin.so
 usr/lib/qgis/plugins/libroadgraphplugin.so
-usr/lib/qgis/plugins/libheatmapplugin.so
 usr/lib/qgis/plugins/libtopolplugin.so
 usr/lib/qgis/plugins/libgeometrycheckerplugin.so
 usr/lib/qgis/qgis_help

ms-windows/osgeo4w/package.cmd

@@ -385,7 +385,6 @@ tar -C %OSGEO4W_ROOT% -cjf %ARCH%/release/qgis/%PACKAGENAME%/%PACKAGENAME%-%VERS
 	"apps/%PACKAGENAME%/plugins/evis.dll" ^
 	"apps/%PACKAGENAME%/plugins/georefplugin.dll" ^
 	"apps/%PACKAGENAME%/plugins/gpsimporterplugin.dll" ^
-	"apps/%PACKAGENAME%/plugins/heatmapplugin.dll" ^
 	"apps/%PACKAGENAME%/plugins/interpolationplugin.dll" ^
 	"apps/%PACKAGENAME%/plugins/offlineeditingplugin.dll" ^
 	"apps/%PACKAGENAME%/plugins/oracleplugin.dll" ^

ms-windows/plugins.nsh

@@ -14,7 +14,6 @@ WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "georefplugin" "true
 WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "globeplugin" "false"
 WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "gpsimporterplugin" "true"
 WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "grassplugin" "true"
-WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "heatmapplugin" "true"
 WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "interpolationplugin" "true"
 WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "offlineeditingplugin" "true"
 WriteRegStr HKEY_CURRENT_USER "Software\QGIS\QGIS3\Plugins" "oracleplugin" "true"

src/plugins/CMakeLists.txt

@@ -17,7 +17,6 @@ ADD_SUBDIRECTORY(georeferencer)
 ADD_SUBDIRECTORY(gps_importer)
 ADD_SUBDIRECTORY(topology)
 ADD_SUBDIRECTORY(offline_editing)
-ADD_SUBDIRECTORY(heatmap)
 ADD_SUBDIRECTORY(geometry_checker)
 
 IF (GRASS_FOUND)