WebGLRenderer: Fix shadow map uniform management.

[Mugen87]

Fixed #32588.

Description

Shadow map uniforms are already updated in below code block.

three.js/src/renderers/WebGLRenderer.js

Lines 2524 to 2546 in adc26e1

	// Pre-allocate texture units for shadow samplers before setting data textures
	if ( materialProperties.needsLights ) {
	// Set shadow map uniforms first to ensure they get the first texture units
	if ( lights.state.directionalShadowMap.length > 0 ) {
	p_uniforms.setValue( _gl, 'directionalShadowMap', lights.state.directionalShadowMap, textures );
	}
	if ( lights.state.spotShadowMap.length > 0 ) {
	p_uniforms.setValue( _gl, 'spotShadowMap', lights.state.spotShadowMap, textures );
	}
	if ( lights.state.pointShadowMap.length > 0 ) {
	p_uniforms.setValue( _gl, 'pointShadowMap', lights.state.pointShadowMap, textures );
	}
	}

They must be removed from the material uniform list otherwise they are updated (and allocated) twice.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	355.56 84.51	355.33 84.47	-231 B -34 B
WebGPU	617.29 171.26	617.29 171.26	+0 B +0 B
WebGPU Nodes	615.89 171.01	615.89 171.01	+0 B +0 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

	Before	After	Diff
WebGL	487.73 119.38	487.5 119.34	-231 B -37 B
WebGPU	688.74 187.04	688.74 187.04	+0 B +0 B
WebGPU Nodes	638.58 174.23	638.58 174.23	+0 B +0 B