egl/android: fix error in droid_add_configs_for_visuals()

This was some kind of leftover in commit acd35c8 and format_count
array variable (declared in outer scope) should be used instead.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Fixes: acd35c8758 ("egl/android: tweak droid_add_configs_for_visuals()")
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

src/egl/drivers/dri2/platform_android.c

@@ -787,8 +787,6 @@ droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
          continue;
 
       for (j = 0; j < ARRAY_SIZE(visuals); j++) {
-         int format_count = 0;
-
          config_attrs[1] = visuals[j].format;
          config_attrs[3] = visuals[j].format;