MAINTAINERS: drop (subscribers-only) markings on Blackfin lists

All of the Blackfin lists are transparently moderated for non-subscribers.
i.e. there are no annoying notices and people get whitelisted after first
their posting.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

MAINTAINERS

@@ -1142,39 +1142,39 @@ F:	arch/blackfin/
 BLACKFIN EMAC DRIVER
 P:	Michael Hennerich
 M:	michael.hennerich@analog.com
-L:	uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
+L:	uclinux-dist-devel@blackfin.uclinux.org
 W:	http://blackfin.uclinux.org
 S:	Supported
 F:	drivers/net/bfin_mac.*
 
 BLACKFIN RTC DRIVER
 P:	Mike Frysinger
 M:	vapier.adi@gmail.com
-L:	uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
+L:	uclinux-dist-devel@blackfin.uclinux.org
 W:	http://blackfin.uclinux.org
 S:	Supported
 F:	drivers/rtc/rtc-bfin.c
 
 BLACKFIN SERIAL DRIVER
 P:	Sonic Zhang
 M:	sonic.zhang@analog.com
-L:	uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
+L:	uclinux-dist-devel@blackfin.uclinux.org
 W:	http://blackfin.uclinux.org
 S:	Supported
 F:	drivers/serial/bfin_5xx.c
 
 BLACKFIN WATCHDOG DRIVER
 P:	Mike Frysinger
 M:	vapier.adi@gmail.com
-L:	uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
+L:	uclinux-dist-devel@blackfin.uclinux.org
 W:	http://blackfin.uclinux.org
 S:	Supported
 F:	drivers/watchdog/bfin_wdt.c
 
 BLACKFIN I2C TWI DRIVER
 P:	Sonic Zhang
 M:	sonic.zhang@analog.com
-L:	uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
+L:	uclinux-dist-devel@blackfin.uclinux.org
 W:	http://blackfin.uclinux.org/
 S:	Supported
 F:	drivers/i2c/busses/i2c-bfin-twi.c