WebGPURenderer: remove some debugging code

[aardgoose]

I think this can be safely removed, I have only see it trigger when working on a PR and breaking something.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	692.21 171.45	692.21 171.45	+0 B +0 B
WebGPU	821.89 221.91	821.67 221.84	-219 B -72 B
WebGPU Nodes	821 221.7	820.79 221.63	-219 B -73 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	464.56 112.27	464.56 112.27	+0 B +0 B
WebGPU	542.09 146.75	541.87 146.68	-219 B -77 B
WebGPU Nodes	498.03 136.5	497.81 136.41	-219 B -88 B

[RenaudRohlinger]

I still have this issue when one of my app freezes (on resize event is triggered recreating multiples RTTs in runtime for example) while the bindGroup gets constantly recreated because of a binding issue similar to #29198 (comment).
I can fix it in my code but I believe that a potential solution might lie in improving the caching strategy for RTTs.
Let's just keep this bit while #29198 is still unresolved. 🙏