Eigen: fold remaining OpenNL code into intern/eigen.

Differential Revision: https://developer.blender.org/D1662

CMakeLists.txt

@@ -362,7 +362,6 @@ if(WIN32)
 endif()
 option(WITH_INPUT_NDOF "Enable NDOF input devices (SpaceNavigator and friends)" ${_init_INPUT_NDOF})
 option(WITH_RAYOPTIMIZATION	"Enable use of SIMD (SSE) optimizations for the raytracer" ON)
-option(WITH_OPENNL        "Enable use of Open Numerical Library" ON)
 if(UNIX AND NOT APPLE)
 	option(WITH_INSTALL_PORTABLE "Install redistributeable runtime, otherwise install into CMAKE_INSTALL_PREFIX" ON)
 	option(WITH_STATIC_LIBS "Try to link with static libraries, as much as possible, to make blender more portable across distributions" OFF)
@@ -2983,9 +2982,6 @@ if(FIRST_RUN)
 		info_cfg_option(WITH_GL_ANGLE)
 	endif()
 
-	info_cfg_text("Other:")
-	info_cfg_option(WITH_OPENNL)
-
 	# debug
 	message(STATUS "HAVE_STDBOOL_H = ${HAVE_STDBOOL_H}")