Address review feedback on device tensor helpers (#20078) #273

Job	Run time
test-webgpu / test-backend-linux (webgpu, operators) / linux-job	38m 1s
test-webgpu / test-backend-linux (webgpu, models) / linux-job	17m 34s
test-webgpu / test-backend-macos	0s
test-webgpu / package-golden-artifacts	1m 37s
	57m 12s

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