[bob-devel] remove pytorch 1.7 hacks

conda/bob-devel/meta.yaml

@@ -89,9 +89,6 @@ requirements:
     - xarray 0.16.1
     - zc.buildout 2.13.3
     - zc.recipe.egg 2.0.7
-    # missing pytorch==1.7 dependencies
-    - dataclasses 0.8
-    - future 0.18.2
   run:
     - python
   run_constrained:
@@ -108,9 +105,6 @@ test:
     - pytorch
     - torchvision
     - setuptools
-    # missing pytorch==1.7 dependencies
-    - dataclasses
-    - future
   commands:
     # we expect these features from ffmpeg:
     - ffmpeg -codecs | grep "DEVI.S zlib"  # [unix]