Revert "ALSA: emu10k1: Fix warning: "CCR" redefined"

This reverts commit 83fc3bc0.

sh-specific "CCR" and "CCR2" have been prefixed by "SH_" in commit
a5f6ea29 ('sh: prefix sh-specific "CCR" and
"CCR2" by "SH_"').
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

include/sound/emu10k1.h

@@ -436,8 +436,6 @@
 #define CCCA_CURRADDR_MASK	0x00ffffff	/* Current address of the selected channel		*/
 #define CCCA_CURRADDR		0x18000008
 
-/* undefine CCR to avoid conflict with the definition for SH */
-#undef CCR
 #define CCR			0x09		/* Cache control register				*/
 #define CCR_CACHEINVALIDSIZE	0x07190009
 #define CCR_CACHEINVALIDSIZE_MASK	0xfe000000	/* Number of invalid samples cache for this channel    	*/