remove useless call (mrdoob#29631)

Co-authored-by: aardgoose <[email protected]>

Author: aardgoose

src/renderers/webgl-fallback/WebGLBackend.js

@@ -1085,8 +1085,6 @@ class WebGLBackend extends Backend {
 
 		// Bindings
 
-		this.createBindings( null, bindings );
-
 		this._setupBindings( bindings, programGPU );
 
 		const attributeNodes = computeProgram.attributes;
@@ -1158,8 +1156,6 @@ class WebGLBackend extends Backend {
 
 	updateBindings( bindGroup /*, bindings*/ ) {
 
-		if ( bindGroup === null ) return;
-
 		const { gl } = this;
 
 		const bindGroupData = this.get( bindGroup );