sh: Kill off dead SH7604 support.

This was added during 2.5.x, but was never moved along. This
can easily be resurrected if someone has one they wish to work
with, but it's not worth keeping around in its current form.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/cpu-sh2/cache.h b/include/asm-sh/cpu-sh2/cache.h
index 20b9796..f02ba7a 100644
--- a/include/asm-sh/cpu-sh2/cache.h
+++ b/include/asm-sh/cpu-sh2/cache.h
@@ -12,23 +12,7 @@
 
 #define L1_CACHE_SHIFT	4
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7604)
-#define CCR		0xfffffe92	/* Address of Cache Control Register */
-
-#define CCR_CACHE_CE	0x01	/* Cache enable */
-#define CCR_CACHE_ID	0x02	/* Instruction Replacement disable */
-#define CCR_CACHE_OD	0x04	/* Data Replacement disable */
-#define CCR_CACHE_TW	0x08	/* Two-way mode */
-#define CCR_CACHE_CP	0x10	/* Cache purge */
-
-#define CACHE_OC_ADDRESS_ARRAY	0x60000000
-
-#define CCR_CACHE_ENABLE	CCR_CACHE_CE
-#define CCR_CACHE_INVALIDATE	CCR_CACHE_CP
-#define CCR_CACHE_ORA		CCR_CACHE_TW
-#define CCR_CACHE_WT		0x00	/* SH-2 is _always_ write-through */
-
-#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
+#if defined(CONFIG_CPU_SUBTYPE_SH7619)
 #define CCR1		0xffffffec
 #define CCR		CCR1
 
@@ -49,5 +33,5 @@
 #define CCR_CACHE_ENABLE	CCR_CACHE_CE
 #define CCR_CACHE_INVALIDATE	CCR_CACHE_CF
 #endif
-#endif /* __ASM_CPU_SH2_CACHE_H */
 
+#endif /* __ASM_CPU_SH2_CACHE_H */