Flatten implementation of SbRtl_Weekday in basic/source/runtime/methods1.cxx. Change-Id: I17931cfecc24be9c114daa9c6c221e6c00a4e3aa Reviewed-on: https://gerrit.libreoffice.org/c/core/+/208256 Tested-by: Jenkins Reviewed-by: Neil Roberts <nroberts@libreoffice.org>