MAINTAINERS: remove unnecessary linux-kernel@vger.kernel.org entries

CC'ing lkml is the default and doesn't need separate entries.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Harry Wei <harryxiyou@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -2824,7 +2824,6 @@ F:	include/linux/gigaset_dev.h
 
 GPIO SUBSYSTEM
 M:	Grant Likely <grant.likely@secretlab.ca>
-L:	linux-kernel@vger.kernel.org
 S:	Maintained
 T:	git git://git.secretlab.ca/git/linux-2.6.git
 F:	Documentation/gpio/gpio.txt
@@ -2847,7 +2846,6 @@ F:	drivers/platform/x86/hdaps.c
 HWPOISON MEMORY FAILURE HANDLING
 M:	Andi Kleen <andi@firstfloor.org>
 L:	linux-mm@kvack.org
-L:	linux-kernel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git hwpoison
 S:	Maintained
 F:	mm/memory-failure.c
@@ -4725,7 +4723,6 @@ F:	drivers/i2c/busses/i2c-pasemi.c
 
 PADATA PARALLEL EXECUTION MECHANISM
 M:	Steffen Klassert <steffen.klassert@secunet.com>
-L:	linux-kernel@vger.kernel.org
 L:	linux-crypto@vger.kernel.org
 S:	Maintained
 F:	kernel/padata.c
@@ -4875,7 +4872,6 @@ F:	include/crypto/pcrypt.h
 PER-CPU MEMORY ALLOCATOR
 M:	Tejun Heo <tj@kernel.org>
 M:	Christoph Lameter <cl@linux-foundation.org>
-L:	linux-kernel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git
 S:	Maintained
 F:	include/linux/percpu*.h
@@ -6923,7 +6919,6 @@ F:	sound/soc/codecs/wm*
 
 WORKQUEUE
 M:	Tejun Heo <tj@kernel.org>
-L:	linux-kernel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git
 S:	Maintained
 F:	include/linux/workqueue.h