Fixed the workflow and the requirements

Author: mesonepigreco

.github/workflows/python-testsuite.yml

@@ -36,8 +36,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install flake8 pytest~=6.0 pgtest~=1.3 aiida-core~=2.3 aiida-quantumespresso~=4.3
-        if [ ${{matrix.python-version}} -eq 2.7 ]; then pip install -r requirements2.txt;
-        else pip install -r requirements.txt; fi
+
         aiida-pseudo install
 
     - name: Lint with flake8
@@ -56,7 +55,7 @@ jobs:
         git clone https://github.com/SSCHAcode/python-sscha.git
 
         pip install meson meson-python ninja
-        pip install mpi4py
+        pip install numpy scipy mpi4py spglib
 
         cd CellConstructor
         pip install --no-build-isolation .

requirements.txt

@@ -1,7 +1,5 @@
-setuptools
 numpy
 scipy
-ase
 spglib
 cellconstructor
 python-sscha