chore: remove stale ciwheelbuild config for PyPy (#2975) #7587

Job	Run time
integration-test-adls	1m 30s
integration-test-gcs	1m 8s
integration-test-s3	1m 8s
integration-test	10m 32s
lint-and-unit-test (3.11)	2m 59s
lint-and-unit-test (3.10)	2m 47s
lint-and-unit-test (3.13)	2m 44s
lint-and-unit-test (3.12)	2m 41s
integration-coverage-report	31s
	26m 0s

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