Purge now unused RTD files. #2505

Job	Run time
Check GitHub Organization	1s
tox -e py312-pip24_0	21m 59s
tox -e py312-pip24_0-integration	46m 48s
tox -e format-check,lint-check,typecheck,vendor-check,package,docs	6m 1s
./dtox.sh -e py27-pip20	12m 1s
./dtox.sh -e py37-pip20	15m 44s
./dtox.sh -e py311-pip20	15m 19s
./dtox.sh -e py311-pip22_3_1	16m 59s
./dtox.sh -e py311-pip23_1_2	16m 13s
./dtox.sh -e py312-pip24_0	14m 54s
./dtox.sh -e py313-pip24_0_patched	15m 1s
./dtox.sh -e pypy310-pip20	26m 39s
./dtox.sh -e pypy310-pip22_3_1	27m 22s
./dtox.sh -e pypy310-pip23_1_2	26m 36s
./dtox.sh -e py27-pip20-integration	21m 12s
./dtox.sh -e py37-pip22_3_1-integration	39m 17s
./dtox.sh -e py37-pip23_1_2-integration	40m 54s
./dtox.sh -e py311-pip20-integration	23m 44s
./dtox.sh -e py311-pip22_3_1-integration	27m 56s
./dtox.sh -e py311-pip23_1_2-integration	27m 0s
./dtox.sh -e py312-pip24_0-integration	34m 50s
./dtox.sh -e py313-pip24_0_patched-integration	40m 14s
./dtox.sh -e pypy310-pip20-integration	43m 11s
./dtox.sh -e pypy310-pip22_3_1-integration	51m 20s
./dtox.sh -e pypy310-pip23_1_2-integration	50m 13s
Gather Final Status	1s
	11h 1m 29s

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