Removed unused fullscreenQuadPS chunk (#7600)

Co-authored-by: Martin Valigursky <mvaligursky@snapchat.com>

Author: mvaligursky

src/scene/shader-lib/chunks-wgsl/chunks-wgsl.js

@@ -37,7 +37,6 @@ import falloffLinearPS from './lit/frag/falloffLinear.js';
 // import floatAsUintPS from './common/frag/float-as-uint.js';
 import fogPS from './common/frag/fog.js';
 import fresnelSchlickPS from './lit/frag/fresnelSchlick.js';
-// import fullscreenQuadPS from './common/frag/fullscreenQuad.js';
 import fullscreenQuadVS from './common/vert/fullscreenQuad.js';
 import gammaPS from './common/frag/gamma.js';
 import glossPS from './standard/frag/gloss.js';
@@ -247,7 +246,6 @@ const shaderChunksWGSL = {
     // floatAsUintPS,
     fogPS,
     fresnelSchlickPS,
-    // fullscreenQuadPS,
     fullscreenQuadVS,
     gammaPS,
     glossPS,

src/scene/shader-lib/chunks/chunks.js

@@ -37,7 +37,6 @@ import falloffLinearPS from './lit/frag/falloffLinear.js';
 import floatAsUintPS from './common/frag/float-as-uint.js';
 import fogPS from './common/frag/fog.js';
 import fresnelSchlickPS from './lit/frag/fresnelSchlick.js';
-import fullscreenQuadPS from './common/frag/fullscreenQuad.js';
 import fullscreenQuadVS from './common/vert/fullscreenQuad.js';
 import gammaPS from './common/frag/gamma.js';
 import gles3PS from '../../../platform/graphics/shader-chunks/frag/gles3.js';
@@ -252,7 +251,6 @@ const shaderChunks = {
     floatAsUintPS,
     fogPS,
     fresnelSchlickPS,
-    fullscreenQuadPS,
     fullscreenQuadVS,
     gammaPS,
     gles3PS,