chore(pin): templateflow ~= 0.6 (and remove requirements.txt)

Taking advantage of the new auto-update. This commit also removes the
requirements.txt file that was used exclusively by the Docker image
distribution: pyntcloud now is in Pypi and we can safely pin
templateflow to >=0.6.0 since the autoupdate was implemented.

Author: oesteban

Dockerfile

@@ -147,12 +147,8 @@ RUN python -c "from matplotlib import font_manager" && \
     sed -i 's/\(backend *: \).*$/\1Agg/g' $( python -c "import matplotlib; print(matplotlib.matplotlib_fname())" )
 
 # Installing dev requirements (packages that are not in pypi)
-WORKDIR /src/
-COPY requirements.txt requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt && \
-    rm -rf $HOME/.cache/pip requirements.txt
-
 # Precaching atlases
+RUN pip install --no-cache-dir "templateflow >= 0.6.0"
 RUN python -c "from templateflow import api as tfapi; \
                tfapi.get(['MNI152Lin', 'MNI152NLin2009cAsym', 'OASIS30ANTs'], suffix='T1w'); \
                tfapi.get(['MNI152Lin', 'MNI152NLin2009cAsym', 'OASIS30ANTs'], desc='brain', suffix='mask'); \
@@ -161,6 +157,7 @@ RUN python -c "from templateflow import api as tfapi; \
                tfapi.get(['OASIS30ANTs', 'NKI'], resolution=1, label='brain', suffix='probseg'); \
                tfapi.get(['OASIS30ANTs', 'NKI'], resolution=1, desc='BrainCerebellumRegistration', suffix='mask'); "
 
+WORKDIR /src/
 COPY . niworkflows/
 WORKDIR /src/niworkflows/
 RUN pip install --no-cache-dir -e .[all] && \

docs/requirements.txt

@@ -10,4 +10,4 @@ sphinx-argparse
 sphinx>=2.1.2,<3.0
 sphinx_rtd_theme
 sphinxcontrib-apidoc ~= 0.3.0
-templateflow >= 0.6.0rc1
+templateflow

requirements.txt

@@ -39,7 +39,7 @@ install_requires =
     seaborn
     svgutils
     transforms3d
-    templateflow >= 0.6.0rc1
+    templateflow >= 0.6
 test_requires =
     coverage < 5
     pytest >= 4.4