Revert "Project modernization (#630)"

This code was not tested and breaks in Release builds, reverting to restore
functionality of the nightly. All in-game menus do not work and generating
a world crashes.

This reverts commit a9be52c41a.

Minecraft.World/TheEndDimension.cpp

@@ -26,7 +26,7 @@ float TheEndDimension::getTimeOfDay(int64_t time, float a) const
 
 float *TheEndDimension::getSunriseColor(float td, float a)
 {
-	return nullptr;
+	return NULL;
 }
 
 Vec3 *TheEndDimension::getFogColor(float td, float a) const