Remove misc.autoargs and usages

[ryanjulian]

Fixes #362
See #358

[codecov]

Codecov Report

Merging #573 into master will increase coverage by 0.47%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #573      +/-   ##
==========================================
+ Coverage   58.31%   58.79%   +0.47%     
==========================================
  Files         135      134       -1     
  Lines        9160     9053     -107     
  Branches     1365     1341      -24     
==========================================
- Hits         5342     5323      -19     
+ Misses       3431     3336      -95     
- Partials      387      394       +7

Impacted Files	Coverage Δ
garage/baselines/base.py	66.66% <ø> (-1.52%)	⬇️
garage/tf/policies/categorical_gru_policy.py	80% <0%> (ø)	⬆️
...arage/tf/samplers/off_policy_vectorized_sampler.py	71.79% <0%> (ø)	⬆️
garage/misc/krylov.py	17.94% <0%> (ø)	⬆️
garage/sampler/stateful_pool.py	53.78% <0%> (ø)	⬆️
garage/tf/policies/gaussian_lstm_policy.py	78.83% <0%> (ø)	⬆️
garage/tf/policies/gaussian_gru_policy.py	78.67% <0%> (ø)	⬆️
garage/tf/policies/categorical_lstm_policy.py	79.83% <0%> (ø)	⬆️
.../exploration_strategies/epsilon_greedy_strategy.py	96.29% <0%> (+3.7%)	⬆️

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[krzentner]

Wow, that was the only usage.

Great.

[ryanjulian]

it was previously used a lot in the envs in rlworkgroup/metaworlds