Remove the defunct Plants entry from the Food category

presets/food.js

@@ -64,15 +64,6 @@ function makeFood() {
         "food"
     ));
 
-    results.push(makeHeight(
-        [
-            ["grass", 3.25, "inches"]
-        ],
-        "Plants",
-        "",
-        "food"
-    ));
-
     results.push(makeHeight(
         [
             ["hamburger", 2.75, "inches"],