Simplify macro implementation for tuples (#1340) #602

Job	Run time
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	2m 9s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	1m 49s
test (macos-latest, x86_64-apple-darwin, stable)	2m 47s
Check doc	1m 50s
test-ios	34s
test (windows-latest, x86_64-pc-windows-gnu, stable)	3m 14s
test (windows-latest, x86_64-pc-windows-msvc, beta)	2m 35s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.60.0)	5m 40s
test-no-std	18s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	3m 6s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	2m 50s
test-miri	4m 0s
	30m 52s

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