Remove obsolete OVM finder

cmake/FindOpenVolumeMesh.cmake

-# - Try to find OpenVolumeMesh
-# Once done this will define
-#  
-# OPENVOLUMEMESH_FOUND           - system has OPENVOLUMEMESH
-# OPENVOLUMEMESH_INCLUDE_DIR     - the OPENVOLUMEMESH include directory
-# OPENVOLUMEMESH_LIBRARY         - Link these to use OPENVOLUMEMESH
-# OPENVOLUMEMESH_LIBRARY_DIR     - Library DIR of OPENVOLUMEMESH
-#   
-
-IF (OPENVOLUMEMESH_INCLUDE_DIRS)
-  # Already in cache, be silent
-  SET(OPENVOLUMEMESH_FIND_QUIETLY TRUE)
-ENDIF (OPENVOLUMEMESH_INCLUDE_DIRS)
-
-FIND_PATH(OPENVOLUMEMESH_INCLUDE_DIR OpenVolumeMesh/Mesh/PolyhedralMesh.hh
-	  PATHS /usr/local/include 
-                /usr/include 
-                /usr/local/OpenVolumeMesh/include
-                "${CMAKE_SOURCE_DIR}/Type-OpenVolumeMesh/libs/OpenVolumeMesh/src"
-                "${CMAKE_SOURCE_DIR}/OpenVolumeMesh/src"
-                "${CMAKE_SOURCE_DIR}/libs_required/OpenVolumeMesh/src"
-                /ACG/acgdev/gcc-4.0-x86_64/OVM/OpenVolumeMesh/installed/include
-		    "C:\\Program Files\\OpenVolumeMesh\\include"
-                )
-
-IF (OPENVOLUMEMESH_INCLUDE_DIR )
-   SET(OPENVOLUMEMESH_FOUND TRUE)
-   ADD_DEFINITIONS(-DENABLE_OPENVOLUMEMESH)
-IF (WIN32)
-	IF(EXISTS "${OPENVOLUMEMESH_INCLUDE_DIR}/../lib")
-		SET(OPENVOLUMEMESH_LIBRARY_DIR "${OPENVOLUMEMESH_INCLUDE_DIR}/../lib")
-	ENDIF()
-ELSE (WIN32)
-	IF(EXISTS "${OPENVOLUMEMESH_INCLUDE_DIR}/../lib/OpenVolumeMesh")
-   		SET(OPENVOLUMEMESH_LIBRARY_DIR "${OPENVOLUMEMESH_INCLUDE_DIR}/../lib/OpenVolumeMesh")
-	ENDIF()
-ENDIF (WIN32)
-   SET(OPENVOLUMEMESH_LIBRARY "OpenVolumeMesh")
-ELSE (OPENVOLUMEMESH_INCLUDE_DIR)
-   SET(OPENVOLUMEMESH_FOUND FALSE )
-ENDIF (OPENVOLUMEMESH_INCLUDE_DIR )
-