[PATCH v3] rxrpc: Remove unused rxrpc_drop_ack tracepoint

[Temitope obabi]

The only call to trace_rxrpc_drop_ack(), in rxrpc_send_ACK(), was removed
by commit 5e6ef4f1017c ("rxrpc: Make the I/O thread take over the call and
local processor work"). The tracepoint is no longer reached by any caller.

Removing this tracepoint avoids keeping unused tracing code and makes the
code easier to maintain. Each defined tracepoint also takes up around 5K of
code and data, even when it is never used.

Fixes: 5e6ef4f1017c ("rxrpc: Make the I/O thread take over the call and local processor work")
Signed-off-by: Temitope obabi <obabitemitope765 at gmail.com>
---
 include/trace/events/rxrpc.h | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 56dc9b614071..ec145da21ca8 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -1837,35 +1837,6 @@ TRACE_EVENT(rxrpc_send_ack,
 		      __entry->serial)
 	    );
 
-TRACE_EVENT(rxrpc_drop_ack,
-	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_propose_ack_trace why,
-		     u8 ack_reason, rxrpc_serial_t serial, bool nobuf),
-
-	    TP_ARGS(call, why, ack_reason, serial, nobuf),
-
-	    TP_STRUCT__entry(
-		    __field(unsigned int,			call)
-		    __field(enum rxrpc_propose_ack_trace,	why)
-		    __field(rxrpc_serial_t,			serial)
-		    __field(u8,					ack_reason)
-		    __field(bool,				nobuf)
-			     ),
-
-	    TP_fast_assign(
-		    __entry->call	= call->debug_id;
-		    __entry->why	= why;
-		    __entry->serial	= serial;
-		    __entry->ack_reason	= ack_reason;
-		    __entry->nobuf	= nobuf;
-			   ),
-
-	    TP_printk("c=%08x %s %s r=%08x nbf=%u",
-		      __entry->call,
-		      __print_symbolic(__entry->why, rxrpc_propose_ack_traces),
-		      __print_symbolic(__entry->ack_reason, rxrpc_ack_names),
-		      __entry->serial, __entry->nobuf)
-	    );
-
 TRACE_EVENT(rxrpc_retransmit,
 	    TP_PROTO(struct rxrpc_call *call,
 		     struct rxrpc_send_data_req *req,
-- 
2.53.0