CMake: Delete FindEigen2, we rely on Eigen3+

cmake/modules/FindEigen2.cmake

@@ -1,29 +0,0 @@
-# Filename: FindEigen2.cmake
-# Authors: kestred (13 Dec, 2013)
-#
-# Usage:
-#   find_package(Eigen2 [REQUIRED] [QUIET])
-#
-# Once done this will define:
-#   EIGEN_FOUND        - system has any version of Eigen
-#   EIGEN2_FOUND       - system has Eigen2
-#   EIGEN2_INCLUDE_DIR - the Eigen2 include directory
-#
-
-if(NOT EIGEN2_INCLUDE_DIR)
-  find_path(EIGEN2_INCLUDE_DIR
-    NAMES Eigen/Core
-    PATHS ${INCLUDE_INSTALL_DIR}
-          ${KDE4_INCLUDE_DIR}
-    PATH_SUFFIXES eigen2
-  )
-
-  mark_as_advanced(EIGEN2_INCLUDE_DIR)
-endif()
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Eigen2 DEFAULT_MSG EIGEN2_INCLUDE_DIR)
-
-if(EIGEN2_FOUND)
-	set(EIGEN_FOUND TRUE)
-endif()