Temporarily remove support for Lucet

Lucet doesn't work on MacOS any more, so testing it has become difficult.

test/default/wasi-test-wrapper.sh

@@ -14,15 +14,5 @@ if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "wasmer" ]; then
   fi
 fi
 
-if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "lucet" ]; then
-  if command -v lucetc-wasi >/dev/null && command -v lucet-wasi >/dev/null; then
-    lucetc-wasi \
-      --reserved-size "${MAX_MEMORY_TESTS}" \
-      -o "${1}.so" --opt-level 2 "$1" &&
-      lucet-wasi --dir=.:. --max-heap-size "${MAX_MEMORY_TESTS}" "${1}.so" &&
-      rm -f "${1}.so" && exit 0
-  fi
-fi
-
 echo "WebAssembly runtime failed" >&2
 exit 1