let's still use our Eigen patch for include search directories (it wa…

…nts the config file by default)

CMakeLists.txt

@@ -324,20 +324,12 @@ if(NOT DEFINED PC_EIGEN_INCLUDE_DIRS)
 	message(FATAL_ERROR "PATCH: PC_EIGEN_INCLUDE_DIRS is required!")
 endif()
 
-find_package(Eigen 3.3 REQUIRED)
-
 # FLANN (required)
 # PATCH: manually set flann.pc variables and make it work with build system
 if(NOT DEFINED _PATCHED_FLANN_INSTALL_DIR_)
 	message(FATAL_ERROR "PATCH: _PATCHED_FLANN_INSTALL_DIR_ is required!")
 endif()
 
-# Eigen3 (required)
-find_package(Eigen3 3.3 REQUIRED NO_MODULE)
-if(NOT EIGEN3_FOUND AND Eigen3_FOUND)
-    set(EIGEN3_FOUND ${Eigen3_FOUND})
-endif()
-
 # FLANN
 find_package(FLANN 1.9.1)
 if(NOT FLANN_FOUND)