maple: remove unneeded maple_bus_uevent() callback.

The driver core recently changed the uevent bus callback to take a const
pointer, and the maple_bus_uevent() was not correctly fixed up.  Instead
of fixing the function parameter types, just remove the callback
entirely as it does not do anything, so it is not necessary.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: 2a81ada3 ("driver core: make struct bus_type.uevent() take a const *")
Link: https://lore.kernel.org/r/20230201125642.624255-1-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/sh/maple/maple.c

@@ -760,12 +760,6 @@ static int maple_match_bus_driver(struct device *devptr,
 	return 0;
 }
 
-static int maple_bus_uevent(struct device *dev,
-			    struct kobj_uevent_env *env)
-{
-	return 0;
-}
-
 static void maple_bus_release(struct device *dev)
 {
 }
@@ -782,7 +776,6 @@ static struct maple_driver maple_unsupported_device = {
 struct bus_type maple_bus_type = {
 	.name = "maple",
 	.match = maple_match_bus_driver,
-	.uevent = maple_bus_uevent,
 };
 EXPORT_SYMBOL_GPL(maple_bus_type);