Stop renaming wheels. This breaks installation with new pip.

The rename makes the metadata inconsistent with the filename,
and pip 21 refuses to install such wheels after downloading them.

The reason for the rename was to get regularly incrementing version
numbers so the newest nightly in the wheelhouse is picked first.
This is now fixed in SciPy master.

Author: rgommers

azure-posix.yml

@@ -76,7 +76,6 @@ jobs:
           TEST_DEPENDS="oldest-supported-numpy pytest pytest-xdist pytest-faulthandler pytest-env"
           source multibuild/common_utils.sh
           source multibuild/travis_steps.sh
-          source extra_functions.sh
           install_run $PLAT
         displayName: Install wheel and test
 
@@ -114,7 +113,6 @@ jobs:
       - bash: |
           set -e
           if [ $ANACONDA_ORG == "scipy-wheels-nightly" ]; then
-            source extra_functions.sh
             for f in wheelhouse/*.whl; do rename_wheel $f; done
           fi