Merge pull request #1063 from eclipse-score/masc2023_update_pmp

bugfix: remove irrelevant plans from pmp

Author: aschemmel-tech

docs/platform_management_plan/index.rst

@@ -29,9 +29,7 @@ Platform Management Plan
    :caption: Content
 
    project_management
-   stakeholder_management
    safety_management
-   risk_management
    quality_management
    config_management
    tool_management

docs/platform_management_plan/risk_management.rst

@@ -65,7 +65,7 @@ Risks and mitigation
 --------------------
 
 Potential risks that derived from the verification activities and their respective mitigation measures are handled by
-the :doc:`risk_management`.
+the :doc:`project_management`.
 
 Schedules
 ---------