Remove an unneeded #include - action.h is already included by plugin.h

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15388 a1c6a512-1295-4272-9138-f99709370657
diff --git a/apps/plugins/text_editor.c b/apps/plugins/text_editor.c
index 108a62a..6b6e449 100644
--- a/apps/plugins/text_editor.c
+++ b/apps/plugins/text_editor.c
@@ -17,7 +17,6 @@
  *
  ****************************************************************************/
 #include "plugin.h"
-#include "action.h"
 #include "playback_control.h"
 
 #if PLUGIN_BUFFER_SIZE > 0x45000