grim/guifications2

Remove unnecessary GTK_CHECK_VERSION checks
draft
2021-04-12, Gary Kramlich
fb28afae81c6
Remove unnecessary GTK_CHECK_VERSION checks
src/gf_action.c
src/gf_blist.c
src/gf_display.c
src/gf_event.c
src/gf_event_info.c
src/gf_item.c
src/gf_item_icon.c
src/gf_item_image.c
src/gf_item_offset.c
src/gf_item_text.c
src/gf_menu.c
src/gf_notification.c
src/gf_preferences.c
src/gf_stock.c
src/gf_theme.c
src/gf_theme_editor.c
src/gf_theme_info.c
src/gf_theme_ops.c
src/guifications.c