Addons: Remove PeppersGhostEffect. (#31037)

Author: Mugen87

examples/files.json

@@ -19,7 +19,6 @@
 		"webgl_effects_anaglyph",
 		"webgl_effects_ascii",
 		"webgl_effects_parallaxbarrier",
-		"webgl_effects_peppersghost",
 		"webgl_effects_stereo",
 		"webgl_framebuffer_texture",
 		"webgl_geometries",

examples/jsm/Addons.js

@@ -28,7 +28,6 @@ export * from './effects/AnaglyphEffect.js';
 export * from './effects/AsciiEffect.js';
 export * from './effects/OutlineEffect.js';
 export * from './effects/ParallaxBarrierEffect.js';
-export * from './effects/PeppersGhostEffect.js';
 export * from './effects/StereoEffect.js';
 
 export * from './environments/DebugEnvironment.js';