lib: Remove upekts used headers from the docs

They're only used by this super quirky driver that stores data
internally.

See #127

libfprint/drivers_api.h

@@ -32,7 +32,6 @@
 #include "fpi-poll.h"
 #include "fpi-dev.h"
 #include "fpi-usb.h"
-#include "fpi-data.h"
 #include "fpi-img.h"
 #include "fpi-assembling.h"
 #include "drivers/driver_ids.h"

libfprint/fpi-async.c

@@ -26,7 +26,7 @@
 #include <errno.h>
 #include <glib.h>
 
-/**
+/*
  * SECTION:fpi-async
  * @title: Asynchronous operations reporting
  * @short_description: Asynchronous operations reporting functions

libfprint/fpi-data.c

@@ -64,7 +64,7 @@ struct fpi_print_data_item_fp2 {
  * in any fashion that suits you.
  */
 
-/**
+/*
  * SECTION: fpi-data
  * @title: Stored prints creation
  * @short_description: Stored prints creation functions