Address review feedback on device tensor helpers (#20078) #317

Job	Run time
test-webgpu / test-backend-linux (webgpu, models) / linux-job	16m 38s
test-webgpu / test-backend-linux (webgpu, operators) / linux-job	36m 46s
test-webgpu / test-backend-macos	0s
test-webgpu / package-golden-artifacts	1m 31s
	54m 55s

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