Deprecate JS CoreMods, remove Forge's usages of them (#10659)

src/main/java/net/minecraftforge/client/FramePassManager.java

@@ -2,6 +2,7 @@
  * Copyright (c) Forge Development LLC and contributors
  * SPDX-License-Identifier: LGPL-2.1-only
  */
+
 package net.minecraftforge.client;
 
 import com.mojang.blaze3d.framegraph.FrameGraphBuilder;

src/main/java/net/minecraftforge/client/event/AddFramePassEvent.java

@@ -2,6 +2,7 @@
  * Copyright (c) Forge Development LLC and contributors
  * SPDX-License-Identifier: LGPL-2.1-only
  */
+
 package net.minecraftforge.client.event;
 
 import net.minecraft.resources.ResourceLocation;

src/main/java/net/minecraftforge/client/gui/overlay/ForgeLayer.java

@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Forge Development LLC and contributors
+ * SPDX-License-Identifier: LGPL-2.1-only
+ */
+
 package net.minecraftforge.client.gui.overlay;
 
 import net.minecraft.client.DeltaTracker;