Removed outdated UTF8 declaration [ Other ] (#24528)

* Removed outdated UTF8 declaration

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

src/Mod/Part/BasicShapes/ShapeContent.py

@@ -1,5 +1,4 @@
 #! python
-# -*- coding: utf-8 -*-
 # ShapeContent.py
 # 2021, by Mark Ganson <TheMarkster>
 # LGPL 2.1 or later