Fix compatibility with fabric-api 0.20

gradle.properties

@@ -14,7 +14,7 @@ yarn_mappings=1.16.2+build.6
 loader_version=0.9.2+build.206
 
 #Fabric api
-fabric_version=0.17.2+build.396-1.16
+fabric_version=0.20.1+build.401-1.16
 
 loom_version=0.4-SNAPSHOT
 

src/main/java/appeng/client/render/cablebus/QuadRotator.java

@@ -24,7 +24,6 @@ import net.fabricmc.api.EnvType;
 import net.fabricmc.api.Environment;
 import net.fabricmc.fabric.api.renderer.v1.mesh.MutableQuadView;
 import net.fabricmc.fabric.api.renderer.v1.render.RenderContext;
-import net.fabricmc.fabric.impl.client.indigo.renderer.mesh.MutableQuadViewImpl;
 import net.minecraft.client.util.math.Vector3f;
 import net.minecraft.util.math.Direction;
 import net.minecraft.util.math.Quaternion;
@@ -93,10 +92,6 @@ public class QuadRotator implements RenderContext.QuadTransform {
             }
         }
 
-        // FIXME FABRIC: Wait for Grondags response about this one
-        MutableQuadViewImpl quadImpl = (MutableQuadViewImpl) quad;
-        quadImpl.lightFace(rotation.rotate(quad.lightFace()));
-
         // Transform the nominal face, setting the cull face will also overwrite the
         // nominialFace,
         // hence saving both first and the order here.