COMP:Removed some useless test for CMake 2.4 version as this is redundant with...

COMP:Removed some useless test for CMake 2.4 version as this is redundant with the first line of the file.

CMakeLists.txt

@@ -45,11 +45,6 @@ IF("${VTK_BINARY_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
   ENDMACRO(INSTALL_FILES)
 ENDIF("${VTK_BINARY_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
 
-# VTK requires CMake 2.4 since August 15th 2006
-IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
-  MESSAGE(FATAL_ERROR "VTK requires CMake 2.4 since August 15th 2006. Please update your CMake and this message will go away.")
-ENDIF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
-
 SET(VTK_CMAKE_DIR "${VTK_SOURCE_DIR}/CMake")
 SET(CMAKE_MODULE_PATH "${VTK_CMAKE_DIR}" ${CMAKE_MODULE_PATH})