Don't prepend protocol/ to include paths

No need to add protocol/, as it's already handled by an explicit
compiler include path.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Dima Ryazanov <dima@gmail.com>

libweston-desktop/xdg-shell-v5.c

@@ -32,7 +32,7 @@
 
 #include "compositor.h"
 #include "zalloc.h"
-#include "protocol/xdg-shell-unstable-v5-server-protocol.h"
+#include "xdg-shell-unstable-v5-server-protocol.h"
 
 #include "libweston-desktop.h"
 #include "internal.h"

libweston-desktop/xdg-shell-v6.c

@@ -33,7 +33,7 @@
 
 #include "compositor.h"
 #include "zalloc.h"
-#include "protocol/xdg-shell-unstable-v6-server-protocol.h"
+#include "xdg-shell-unstable-v6-server-protocol.h"
 
 #include "libweston-desktop.h"
 #include "internal.h"