[CI skip] Removed an unused class

src/main/java/io/github/thebusybiscuit/slimefun4/api/items/ItemRestriction.java

@@ -1,44 +0,0 @@
-package io.github.thebusybiscuit.slimefun4.api.items;
-
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.ItemStack;
-
-import io.github.thebusybiscuit.slimefun4.api.player.PlayerProfile;
-import me.mrCookieSlime.Slimefun.Objects.SlimefunItem.SlimefunItem;
-
-public interface ItemRestriction {
-
-    /**
-     * This method represents a check.
-     * The returned boolean will decide whether to allow the action.
-     * 
-     * @param profile
-     *            The Player's profile
-     * @param p
-     *            The Player itself
-     * @param item
-     *            The SlimefunItem that the {@link ItemStack} represents
-     * @param itemstack
-     *            The ItemStack that is being tested.
-     * 
-     * @return Whether the action was allowed
-     */
-    boolean isAllowed(PlayerProfile profile, Player p, SlimefunItem item, ItemStack itemstack);
-
-    /**
-     * This method is executed if an ItemRestriction took affect.
-     * Override it to send a message to the Player telling them they cannot
-     * use that item, or do something else in there.
-     * 
-     * @param profile
-     *            The Player's profile
-     * @param p
-     *            The Player to warn
-     * @param item
-     *            The SlimefunItem that the {@link ItemStack} represents
-     * @param itemstack
-     *            The ItemStack that was prevented from being used
-     */
-    void warnPlayer(PlayerProfile profile, Player p, SlimefunItem item, ItemStack itemstack);
-
-}