Drop unnecessary semicolon from end of file

Remove unnecessary semicolon to avoid a warning about C++98
incompatibility:
error: extra ';' outside of a function is incompatible with
C++98 [-Werror,-Wc++98-compat-extra-semi]

Test: Built an AIDL interface with trace.h methods, ran on device, collected traces.

Change-Id: I307a36eeef861d4c28aa85dc3e0b15500bfac7c8
diff --git a/include/android/trace.h b/include/android/trace.h
index d59690a..dbad6f6 100644
--- a/include/android/trace.h
+++ b/include/android/trace.h
@@ -115,7 +115,7 @@
 #endif /* __ANDROID_API__ >= 29 */
 
 #ifdef __cplusplus
-};
+}
 #endif
 
 #endif // ANDROID_NATIVE_TRACE_H