MAINTAINERS: remove obsolete pattern in RTC SUBSYSTEM section

Commit d890cfc ("rtc: ds2404: Convert to GPIO descriptors") removes
the rtc-ds2404.h platform data and with that, there is no file remaining
matching the pattern 'include/linux/platform_data/rtc-*'. Hence,
./scripts/get_maintainer.pl --self-test=patterns complains about a broken
reference.

Remove the obsolete file pattern in the REAL TIME CLOCK (RTC) SUBSYSTEM.

Signed-off-by: Lukas Bulwahn <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexandre Belloni <[email protected]>

Author: bulwahn

MAINTAINERS

@@ -17928,7 +17928,6 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git
 F:	Documentation/admin-guide/rtc.rst
 F:	Documentation/devicetree/bindings/rtc/
 F:	drivers/rtc/
-F:	include/linux/platform_data/rtc-*
 F:	include/linux/rtc.h
 F:	include/linux/rtc/
 F:	include/uapi/linux/rtc.h