ci_set_matrix: no need to expand the value of CIRCUITPY_WEB_WORKFLOW

This is now done by the way shared_bindings_matrix.py invokes make.

Author: jepler

tools/ci_set_matrix.py

@@ -203,9 +203,6 @@ def get_settings(board):
                         if file.startswith("supervisor/shared/web_workflow/static/"):
                             web_workflow = settings["CIRCUITPY_WEB_WORKFLOW"]
 
-                            while web_workflow.startswith("$("):
-                                web_workflow = settings[web_workflow[2:-1]]
-
                             if web_workflow != "0":
                                 boards_to_build.add(board)
                                 continue