No more pinning to Python 3.11

Author: krystophny

scripts/setup/venv.sh

@@ -1,10 +1,6 @@
 #!/bin/bash
 
-# We check explicitly for Python 3.11 since it's the last version
-# supporting numpy.distutils, which is required by gacode for OMFIT.
-if command -v python3.11 &> /dev/null; then
-    PYTHON=$(command -v python3.11)
-elif command -v python3 &> /dev/null; then
+if command -v python3 &> /dev/null; then
     PYTHON=$(command -v python3)
 elif command -v python &> /dev/null; then
     PYTHON=$(command -v python)