net-snk: Remove custom printf version

In favor of the libc one

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

clients/net-snk/include/kernel.h

@@ -17,12 +17,12 @@
 #include <stdint.h>
 #include <unistd.h>
 #include <string.h>
+#include <stdio.h>
 #include <of.h>
 
 uint64_t get_time(void);
 int getchar(void);
 
-int printf(const char *, ...);
 void *malloc_aligned(size_t size, int align);
 
 int pre_open_ih(int fd, ihandle_t ih);

clients/net-snk/kernel/systemcall.c

@@ -174,15 +174,3 @@ void exit(int status)
 {
 	_exit(status);
 }
-
-int printf(const char* fmt, ...)
-{
-	int count;
-	va_list ap;
-	char buffer[256];
-	va_start (ap, fmt);
-	count=vsprintf(buffer, fmt, ap);
-	write (1, buffer, count);
-	va_end (ap);
-	return count;
-}