removed FindQwt

etc/cmake/Findqwt.cmake

-if (qwt_INCLUDE_DIR AND qwt_LIBRARIES)
-    # in cache already
-    set(qwt_FOUND TRUE)
-else()
-    if (NOT qwt_DIR)
-        set(qwt_DIR $ENV{QWT_DIR})
-    endif (NOT qwt_DIR)
-    find_path(qwt_INCLUDE_DIR qwt.h
-        # installation selected by user
-        ${qwt_DIR}
-        ${qwt_DIR}/src
-        ${qwt_DIR}/include
-        /usr/include/qwt
-    )
-
-
-    message(STATUS "qwt_DIR: ${qwt_DIR}")
-    message(STATUS "qwt-Include: ${qwt_INCLUDE_DIR}")
-
-    if (ARMARX_OS_WIN)
-        message(STATUS "no qwt installed for windows")
-    else()
-        find_library(qwt_LIBRARY
-                     NAMES qwt
-                     PATHS ${qwt_DIR}/lib)
-        message(STATUS "qwt-lib: ${qwt_LIBRARY}")
-    endif()
-
-    set(qwt_LIBRARIES ${qwt_LIBRARY})
-    set(qwt_INCLUDE_DIRS ${qwt_INCLUDE_DIR})
-
-    include(FindPackageHandleStandardArgs)
-    find_package_handle_standard_args(qwt DEFAULT_MSG qwt_INCLUDE_DIR qwt_LIBRARIES)
-    set(qwt_FOUND ${QWT_FOUND})
-
-    mark_as_advanced(qwt_INCLUDE_DIR qwt_LIBRARIES)
-
-endif()