ring-buffer: remove unused variable

Fix the compiler error:

kernel/trace/ring_buffer.c: In function 'rb_move_tail':
kernel/trace/ring_buffer.c:1236: warning: unused variable 'event'

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index dbc0f93396aa..e857e9443987 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1233,7 +1233,6 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
 {
         struct buffer_page *next_page, *head_page, *reader_page;
         struct ring_buffer *buffer = cpu_buffer->buffer;
-        struct ring_buffer_event *event;
         bool lock_taken = false;
         unsigned long flags;