Tidying up old lettuce and improving coverage

* Remove old lettuce (code with comments that isn't used anymore)
* remove utils.R file (for now) as it only had code in there that removed a .zip extensions, which isn't used anymore. This also takes our code coverage up to 100% 💫

R/tar-terra-vect.R

@@ -1,38 +1,3 @@
-# format_terra_vect_shapefile <- targets::tar_format(
-# read = function(path) {
-# terra::vect(
-# paste0(
-# "/vsizip/",
-# file.path(
-# path,
-# replace_dot_zip_with_shp(path)
-# )
-# )
-# )
-# },
-# write = function(object, path) {
-# terra::writeVector(
-# x = object,
-# filename = replace_dot_zip_with_shp(path),
-# filetype = "ESRI Shapefile",
-# overwrite = TRUE
-# )
-# zf <- list.files(
-# pattern = replace_dot_zip(
-# x = path,
-# replacement = ""
-# )
-# )
-# utils::zip(
-# zipfile = path,
-# files = zf
-# )
-# unlink(zf)
-# },
-# marshal = function(object) terra::wrap(object),
-# unmarshal = function(object) terra::unwrap(object)
-# )
-
 #' Targets format for terra vectors
 #'
 #' Provides targets format for `terra::vect` objects