Remove duplicates and unused prototypes.

Signed-off-by: Jan Kiszka <jan.kis...@web.de>
---
 arch/um/include/asm/system.h |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/um/include/asm/system.h b/arch/um/include/asm/system.h
index 753346e..93af1cf 100644
--- a/arch/um/include/asm/system.h
+++ b/arch/um/include/asm/system.h
@@ -3,11 +3,8 @@
 
 #include "sysdep/system.h"
 
-extern void *switch_to(void *prev, void *next, void *last);
-
 extern int get_signals(void);
 extern int set_signals(int enable);
-extern int get_signals(void);
 extern void block_signals(void);
 extern void unblock_signals(void);
 
-- 
1.6.0.2


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