Remove PictureSign-specific mixin

Author: Ampflower

src/main/java/net/modfest/fireblanket/mixin/client/MixinSignBlockEntityRenderer.java

@@ -8,7 +8,13 @@
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
+/**
+ * Previously used to hide signs used for PictureSign.
+ * <p>
+ * Unless we ever bring it back, this can sit dormant.
+ */
 // priority to dodge PictureSign
+@Deprecated(forRemoval = true)
 @Mixin(value = AbstractSignRenderer.class, priority = 5000)
 public class MixinSignBlockEntityRenderer {
 	@Inject(

src/main/resources/fireblanket.mixins.json

@@ -114,7 +114,6 @@
 		"accessor.ParticleManagerAccessor",
 		"client.MixinByteBufferBuilder",
 		"client.MixinClientPlayNetworkHandler",
-		"client.MixinSignBlockEntityRenderer",
 		"client.adventure_fix.MixinClientPlayerInteractionManager",
 		"client.annoyances.adventure.MixinBlockPredicatesComponent",
 		"client.be_masking.MixinBlockEntityRenderDispatcher",