Revert "[BugFix] Fix tensordict private imports" (#2276) #2164

Job	Run time
unittests-meltingpot / linux-job	10m 11s
unittests-pettingzoo / linux-job	9m 31s
unittests-atari-dqn (3.9, 12.1) / linux-job	12m 41s
unittests-brax (3.11, 12.1) / linux-job	10m 28s
unittests-d4rl (3.9, 12.1) / linux-job	8m 41s
unittests-envpool (3.9, 12.1) / linux-job	8m 32s
unittests-gendgrl (3.9, 12.1) / linux-job	7m 0s
unittests-gym (3.9, 12.1) / linux-job	17m 54s
unittests-jumanji (3.9, 12.1) / linux-job	34m 1s
unittests-minari (3.9, 12.1) / linux-job	51m 57s
unittests-openx (3.9, 12.1) / linux-job	16m 30s
unittests-robohive (3.9, 12.1) / linux-job	45m 32s
unittests-roboset (3.9, 12.1) / linux-job	10m 43s
unittests-sklearn (3.9, 12.1) / linux-job	5m 53s
unittests-smacv2 (3.9, 12.1) / linux-job	12m 20s
unittests-vd4rl (3.9, 12.1) / linux-job	9m 20s
unittests-vmas (3.9, 12.1) / linux-job	12m 46s
	4h 44m 0s

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