gplugin/gplugin

Use g_queue_clear_full as we long ago required glib 2.60

2022-03-15, Gary Kramlich
aab3e0707aeb
Use g_queue_clear_full as we long ago required glib 2.60

Testing Done:
Compiled and verified the warning was gone.

Reviewed at https://reviews.imfreedom.org/r/1351/
if get_option('rs')
add_languages('rust')
subdir('tests')
endif # rs