CI: Simplify templateflow install

Author: mgxd

.circleci/config.yml

@@ -272,7 +272,7 @@ jobs:
           name: Pull TemplateFlow down, pre-cache some templates
           command: |
             export TEMPLATEFLOW_HOME=/tmp/templateflow
-            pip install -U --user --no-cache-dir "$( grep templateflow /tmp/src/smriprep/setup.cfg | xargs )"
+            pip install -U --user --no-cache-dir templateflow
             python -c "from templateflow import api as tfapi; \
                        tfapi.get(['MNI152Lin', 'MNI152NLin2009cAsym', 'OASIS30ANTs'], suffix='T1w'); \
                        tfapi.get(['MNI152Lin', 'MNI152NLin2009cAsym', 'OASIS30ANTs'], desc='brain', suffix='mask'); \