Small bits of cleanup

- Remove unused MonitorRenderer. I'm sure this had been deleted
   already, but apparently not!
 - Add missing items to the changelog.
 - Fix crash when clearing tests in a world.
 - Bump Iris deps, to help with debugging #2229.

projects/common/src/main/java/dan200/computercraft/shared/peripheral/monitor/MonitorRenderer.java

@@ -1,32 +0,0 @@
-// SPDX-FileCopyrightText: 2020 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.shared.peripheral.monitor;
-
-/**
- * The render type to use for monitors.
- *
- * @see dan200.computercraft.client.render.TileEntityMonitorRenderer
- * @see ClientMonitor
- */
-public enum MonitorRenderer {
-    /**
-     * Determine the best monitor backend.
-     */
-    BEST,
-
-    /**
-     * Render using texture buffer objects.
-     *
-     * @see org.lwjgl.opengl.GL31#glTexBuffer(int, int, int)
-     */
-    TBO,
-
-    /**
-     * Render using VBOs.
-     *
-     * @see com.mojang.blaze3d.vertex.VertexBuffer
-     */
-    VBO,
-}

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestHooks.kt

@@ -88,7 +88,7 @@ object TestHooks {
         LOG.info("Cleaning up after last run")
 
         val level = server.overworld()
-        StructureUtils.findTestBlocks(getTestOrigin(server), 200, level).forEach { pos ->
+        StructureUtils.findTestBlocks(getTestOrigin(server), 200, level).toList().forEach { pos ->
             val test = level.getBlockEntity(pos, BlockEntityType.TEST_INSTANCE_BLOCK).getOrNull() ?: return@forEach
             StructureUtils.clearSpaceForStructure(test.structureBoundingBox, level)
         }