feat: remove 'single use' intermediate variables #14379

Job	Run time
build-acvm-js	1m 26s
build-noir-wasm	3m 45s
build-noirc-abi	1m 28s
build-nargo	2m 27s
ACVM JS (Node.js)	49s
ACVM JS (Browser)	1m 17s
noirc_abi	1m 15s
Noir JS	1m 11s
noir_codegen	1m 3s
Example scripts	17s
Check external repo - ${{ matrix.project.repo }}	0s
noir_wasm	1m 53s
Integration Tests (Browser)	1m 57s
Integration Tests (Node)	2m 35s
End	1s
	21m 24s

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