Removed more eigen references.

CMakeLists.txt

@@ -225,7 +225,6 @@ px4_add_git_submodule(TARGET git_gencpp PATH "Tools/gencpp")
 px4_add_git_submodule(TARGET git_mavlink PATH "mavlink/include/mavlink/v1.0")
 px4_add_git_submodule(TARGET git_gtest PATH "unittets/gtest")
 px4_add_git_submodule(TARGET git_uavcan PATH "src/modules/uavcan/libuavcan")
-px4_add_git_submodule(TARGET git_eigen PATH "src/lib/eigen")
 px4_add_git_submodule(TARGET git_nuttx PATH "NuttX")
 px4_add_git_submodule(TARGET git_dspal PATH "src/lib/dspal")
 px4_add_git_submodule(TARGET git_jmavsim PATH "Tools/jMAVSim")
@@ -288,7 +287,7 @@ px4_generate_messages(TARGET msg_gen
 px4_generate_parameters_xml(OUT parameters.xml BOARD ${BOARD})
 px4_generate_airframes_xml(OUT airframes.xml BOARD ${BOARD})
 add_custom_target(xml_gen
-	DEPENDS git_eigen parameters.xml airframes.xml)
+	DEPENDS parameters.xml airframes.xml)
 
 #=============================================================================
 # external projects

src/lib/eigen

@@ -1 +0,0 @@
-Subproject commit eb7213abbf38a987a18ed5071172d9d26cc38306

src/platforms/common/CMakeLists.txt

@@ -37,10 +37,6 @@ set(depends
 	git_uavcan
 	)
 
-if(${OS} STREQUAL "posix" OR ${BOARD} STREQUAL "sim")
-	list(APPEND depends git_eigen)
-endif()
-
 px4_add_module(
 	MODULE platforms__common
 	SRCS