dmaengine: remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: linux-modules@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: dmaengine@vger.kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

drivers/dma/ep93xx_dma.c

@@ -1431,4 +1431,3 @@ subsys_initcall(ep93xx_dma_module_init);
 
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
 MODULE_DESCRIPTION("EP93xx DMA driver");
-MODULE_LICENSE("GPL");

drivers/dma/ipu/ipu_idmac.c

@@ -1797,6 +1797,5 @@ static int __init ipu_init(void)
 subsys_initcall(ipu_init);
 
 MODULE_DESCRIPTION("IPU core driver");
-MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Guennadi Liakhovetski <lg@denx.de>");
 MODULE_ALIAS("platform:ipu-core");

drivers/dma/mv_xor_v2.c

@@ -917,4 +917,3 @@ static struct platform_driver mv_xor_v2_driver = {
 module_platform_driver(mv_xor_v2_driver);
 
 MODULE_DESCRIPTION("DMA engine driver for Marvell's Version 2 of XOR engine");
-MODULE_LICENSE("GPL");

drivers/dma/sh/shdma-base.c

@@ -1047,6 +1047,5 @@ static void __exit shdma_exit(void)
 }
 module_exit(shdma_exit);
 
-MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("SH-DMA driver base library");
 MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");