remove the useless cmake file

Findlaser_scan_utils.cmake

-FIND_PATH(
-    laser_scan_utils_INCLUDE_DIRS
-    NAMES laser_scan_utils.h
-    PATHS /usr/local/include/iri-algorithms/laser_scan_utils)
-#change INCLUDE_DIRS to its parent directory
-get_filename_component(laser_scan_utils_INCLUDE_DIRS ${laser_scan_utils_INCLUDE_DIRS} DIRECTORY)
-
-FIND_LIBRARY(
-    laser_scan_utils_LIBRARY
-    NAMES laser_scan_utils
-    PATHS /usr/lib /usr/local/lib) 
-
-IF (laser_scan_utils_INCLUDE_DIRS AND laser_scan_utils_LIBRARY)
-   SET(laser_scan_utils_FOUND TRUE)
-   SET(laser_scan_utils_INCLUDE_DIR ${laser_scan_utils_INCLUDE_DIRS})
-   SET(laser_scan_utils_LIBRARIES ${laser_scan_utils_LIBRARY})
-ENDIF (laser_scan_utils_INCLUDE_DIRS AND laser_scan_utils_LIBRARY)
-
-IF (laser_scan_utils_FOUND)
-   IF (NOT laser_scan_utils_FIND_QUIETLY)
-      MESSAGE(STATUS "Found laser_scan_utils: ${laser_scan_utils_LIBRARY}")
-   ENDIF (NOT laser_scan_utils_FIND_QUIETLY)
-ELSE (laser_scan_utils_FOUND)
-   IF (laser_scan_utils_FIND_REQUIRED)
-      MESSAGE(FATAL_ERROR "Could not find laser_scan_utils")
-   ENDIF (laser_scan_utils_FIND_REQUIRED)
-ENDIF (laser_scan_utils_FOUND)
-