remove 1.7.4

CMake/cotire.cmake

@@ -43,7 +43,6 @@ if (NOT CMAKE_SCRIPT_MODE_FILE)
 endif()
 
 set (COTIRE_CMAKE_MODULE_FILE "${CMAKE_CURRENT_LIST_FILE}")
-set (COTIRE_CMAKE_MODULE_VERSION "1.7.4")
 set (COTIRE_CMAKE_MODULE_VERSION "1.7.5")
 
 # activate select policies