disable_multitouch should also disable MTD loading on Linux

[ikus060]

Software Versions

• Python: 3.10
• OS: Linux
• Kivy: 2.3.0
• Kivy installation method: pip install

Describe the bug

When starting kivy with Config.set('input', 'mouse', 'mouse,disable_multitouch') I'm not expecting kivy to warn agains missing permissions like the following:

2024-04-23 16:19:21,656 [281744][WARNI][MTDMotionEve] MTD: Unable to open device "/dev/input/event13". Please ensure you have the appropriate permissions.

Expected behavior
When multitouch is disabled, Kivy should not try to access MTD and should not raise a warning in the logs.
A clear and concise description of what you expected to happen.

To Reproduce
Simply start a kivy application with Config.set('input', 'mouse', 'mouse,disable_multitouch') where permissions are not properly set.

Code and Logs and screenshots
N/A

Additional context
N/A