rust: remove duplicate entries from wanted_hashes in hashlib test #1661

Job	Run time
pythonbuild	3m 41s
build (cpython-3.8, vcvars32.bat, static-noopt)	12m 45s
build (cpython-3.8, vcvars32.bat, shared-pgo)	26m 30s
build (cpython-3.8, vcvars64.bat, static-noopt)	17m 0s
build (cpython-3.8, vcvars64.bat, shared-pgo)	26m 30s
build (cpython-3.9, vcvars32.bat, static-noopt)	14m 54s
build (cpython-3.9, vcvars32.bat, shared-pgo)	27m 24s
build (cpython-3.9, vcvars64.bat, static-noopt)	15m 7s
build (cpython-3.9, vcvars64.bat, shared-pgo)	30m 34s
build (cpython-3.10, vcvars32.bat, static-noopt)	14m 3s
build (cpython-3.10, vcvars32.bat, shared-pgo)	28m 37s
build (cpython-3.10, vcvars64.bat, static-noopt)	14m 16s
build (cpython-3.10, vcvars64.bat, shared-pgo)	29m 26s
build (cpython-3.11, vcvars32.bat, static-noopt)	20m 0s
build (cpython-3.11, vcvars32.bat, shared-pgo)	38m 38s
build (cpython-3.11, vcvars64.bat, static-noopt)	21m 17s
build (cpython-3.11, vcvars64.bat, shared-pgo)	42m 22s
	6h 23m 4s

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