[sf] fix transaction tracing path typo

Bug: 282110579, 238781169
Fixes: 277265947
Test: presubmit

Change-Id: I2066f606337005eb049ad721ff80f34c9989b8c1
diff --git a/services/surfaceflinger/Tracing/TransactionTracing.h b/services/surfaceflinger/Tracing/TransactionTracing.h
index fa006fc..a59dc6e 100644
--- a/services/surfaceflinger/Tracing/TransactionTracing.h
+++ b/services/surfaceflinger/Tracing/TransactionTracing.h
@@ -77,7 +77,7 @@
     friend class SurfaceFlinger;
 
     static constexpr auto DIR_NAME = "/data/misc/wmtrace/";
-    static constexpr auto FILE_NAME = "/transactions_trace.winscope";
+    static constexpr auto FILE_NAME = "transactions_trace.winscope";
     static constexpr auto FILE_PATH = "/data/misc/wmtrace/transactions_trace.winscope";
 
     mutable std::mutex mTraceLock;