Remove ES4 Iteration tests from various packages in preparation for `nextValueOrThrow` cleanup. RELNOTES: n/a
Remove ES4 Iteration tests from various packages in preparation for `nextValueOrThrow` cleanup.
RELNOTES: n/a

PiperOrigin-RevId: 433275432
Change-Id: I83882997cf8e0093a491c3eabc218a9346f44f90

google/closure-library,google/closure-library,google/closure-library,google/closure-library,google/closure-library