PYTHON-5339 Clean up GitHub PR definitions in Evergreen Project #2284

Job	Run time
Make SDist	35s
Build wheels for manylinux_x86_64	2m 27s
Build wheels for manylinux_aarch64	7m 6s
Build wheels for manylinux_ppc64le	7m 4s
Build wheels for manylinux_s390x	7m 4s
Build wheels for manylinux_i686	2m 30s
Build wheels for win_amd6	4m 12s
Build wheels for win32	4m 12s
Build wheels for macos	4m 1s
Download Wheels	1s
	39m 12s

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