Hide RNNG JIT till PyTorch 1.2 is ready (#686)

Summary:
Pull Request resolved: #686

RNNG JIT code depends on some latest code in PyTorch which is not released yet, to unblock releasing a stable version for PyText, we'll remove it for now.

Reviewed By: geof90

Differential Revision: D15776325

fbshipit-source-id: 778492f6b76267a58a39063f2d54306ecbf6f811

.circleci/config.yml

@@ -9,18 +9,12 @@ _run:
     command: |
       sudo ./install_deps
       sudo pip install --progress-bar off pytest pytest-cov
-  install_pytorch_nightly: &install_pytorch_nightly
-    name: install_pytorch_nightly
-    command: |
-      sudo pip uninstall -y torch
-      sudo pip install --progress-bar off torch_nightly -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html
 
 
 _do_tests: &do_tests
   - checkout
   - run: *install_system_deps
   - run: *install_test_deps
-  - run: *install_pytorch_nightly
   - run:
       name: run tests and gather coverag
       command: pytest --junitxml=test-reports/junit.xml --cov=pytext --cov-report=html:htmlcov
@@ -57,7 +51,6 @@ jobs:
             sudo pip install --upgrade pip
             sudo pip install -r docs_requirements.txt
             sudo pip install -r pytext/docs/requirements.txt
-      - run: *install_pytorch_nightly
       - run:
           name: build docs
           command: |

docs_requirements.txt

@@ -1,3 +1,4 @@
+https://download.pytorch.org/whl/cpu/torch-1.1.0-cp37-cp37m-linux_x86_64.whl
 click
 future
 hypothesis<4.0