package/flutter-pi: remove libgles requirement for gstreamer audio plugin

Commit 99a50a8c9804 (package/flutter-pi: new package) erroneously made
the gstreamer-based audio plugin depend on GLES, although there is no
such requirement defined in the CMakeLists. This error was likely due to
a copy/paste mistake.

Remove the requirement.

Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
[yann.morin.1998@free.fr: reword commit log]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/flutter-pi/Config.in

@@ -47,7 +47,6 @@ config BR2_PACKAGE_FLUTTER_PI_CHARSET_CONVERTER_PLUGIN
 
 config BR2_PACKAGE_FLUTTER_PI_GSTREAMER_AUDIO_PLAYER_PLUGIN
 	bool "gstreamer audio player"
-	depends on BR2_PACKAGE_HAS_LIBGLES
 	select BR2_PACKAGE_GSTREAMER1
 	select BR2_PACKAGE_GST1_PLUGINS_BASE
 	select BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_ALSA