tracing: remove format attribute of inline function

Due to a cut and paste error, I added the gcc attribute for printf
format to the static inline stub of trace_seq_printf.

This will cause a compile failure.

[ Impact: fix compiler error when CONFIG_TRACING is off ]

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: =?ISO-8859-15?Q?Fr=E9d=E9ric_Weisbecker?= <fweisbec@gmail.com>
LKML-Reference: <alpine.DEB.2.00.0904171717080.1016@gandalf.stny.rr.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/linux/trace_seq.h

@@ -42,7 +42,6 @@ extern int trace_seq_path(struct trace_seq *s, struct path *path);
 
 #else /* CONFIG_TRACING */
 static inline int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
-	__attribute__ ((format (printf, 2, 3)))
 {
 	return 0;
 }