remove api that was scheduled for removal

patches/api/0371-Add-Moving-Piston-API.patch

@@ -0,0 +1,55 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
+Date: Sat, 4 Dec 2021 13:29:45 -0500
+Subject: [PATCH] Add Moving Piston API
+
+
+diff --git a/src/main/java/io/papermc/paper/block/MovingPiston.java b/src/main/java/io/papermc/paper/block/MovingPiston.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..ee7c85abf66dc11920bb29f9ce3b407121a665ee
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/block/MovingPiston.java
+@@ -0,0 +1,43 @@
++package io.papermc.paper.block;
++
++import org.bukkit.block.BlockFace;
++import org.bukkit.block.TileState;
++import org.bukkit.block.data.BlockData;
++import org.jetbrains.annotations.NotNull;
++
++public interface MovingPiston extends TileState {
++
++    /**
++     * Gets the block that is being pushed
++     *
++     * @return the pushed block
++     */
++    @NotNull
++    BlockData getMovingBlock();
++
++    /**
++     * The direction that the current moving piston
++     * is pushing/pulling a block in.
++     *
++     * @return the direction
++     */
++    @NotNull
++    BlockFace getDirection();
++
++    /**
++     * Gets if the piston is extending or not.
++     * Returns false if the piston is retracting.
++     *
++     * @return is extending or not
++     */
++    boolean isExtending();
++
++    /**
++     * Returns if this moving piston represents the main piston head
++     * from the original piston.
++     *
++     * @return is the piston head or not
++     */
++    boolean isPistonHead();
++
++}