Initial removal of Nvidia CG. Still some more cleanup to go

CMakeLists.txt

@@ -466,23 +466,6 @@ else()
 		add_subdirectory(Externals/GLew)
 		include_directories(Externals/GLew/include)
 	endif(NOT GLEW_FOUND)
-
-	if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-		check_lib(CG Cg Cg/cg.h)
-	endif()
-	if(NOT CG_FOUND)
-		message("Using static Cg from Externals")
-		include_directories(Externals)
-	endif(NOT CG_FOUND)
-	check_lib(CGGL CgGL Cg/cgGL.h)
-	if(NOT CG_FOUND)
-		message("CG not found, Building without")
-		add_definitions(-DHAVE_CG=0)
-		set(HAVE_CG 0)
-	else()
-		add_definitions(-DHAVE_CG=1)
-		set(HAVE_CG 1)
-	endif()
 endif()
 
 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")