WebGLProgram: Clean up. (finishing 384e5d6ef5b4d819ae985cccdac44c2fba4c6889)

src/renderers/webgl/WebGLProgram.js

@@ -1,7 +1,7 @@
 import { WebGLUniforms } from './WebGLUniforms.js';
 import { WebGLShader } from './WebGLShader.js';
 import { ShaderChunk } from '../shaders/ShaderChunk.js';
-import { NoToneMapping, AddOperation, MixOperation, MultiplyOperation, CubeRefractionMapping, CubeUVReflectionMapping, CubeReflectionMapping, PCFSoftShadowMap, PCFShadowMap, VSMShadowMap, ACESFilmicToneMapping, CineonToneMapping, CustomToneMapping, ReinhardToneMapping, LinearToneMapping, sRGBEncoding, LinearEncoding, GLSL3 } from '../../constants.js';
+import { NoToneMapping, AddOperation, MixOperation, MultiplyOperation, CubeUVReflectionMapping, PCFSoftShadowMap, PCFShadowMap, VSMShadowMap, ACESFilmicToneMapping, CineonToneMapping, CustomToneMapping, ReinhardToneMapping, LinearToneMapping, sRGBEncoding, LinearEncoding, GLSL3 } from '../../constants.js';
 
 let programIdCount = 0;