removed unused argument 'file' from roxygen documentation in function get_file_name()

Author: eanokian

R/getFileName.R

@@ -6,8 +6,6 @@
 #' @author Steven haesendonckx {shaesen2@@its.jnj.com}
 #'
 #' @return The file path up until the program's name.
-#' @param file name of the file
-#'
 #' @export
 #' @examples
 #' get_file_name()