remove redundant PIP_BREAK_SYSTEM_PACKAGES flag

Author: PabloHiro

roles/setup/tasks/python_packages.yml

@@ -16,8 +16,6 @@
   when: python_version.stdout is version(minimum_python_version, '<')
 
 - name: Install additional python packages
-  environment:
-    PIP_BREAK_SYSTEM_PACKAGES: 1  # Allow pip to modify externally-managed Python installation
   ansible.builtin.pip:
     name: "{{ additional_python_packages | default([]) }}"
     executable: "{{ pip_executable }}"