Remove -DG_DISABLE_DEPRECATED
Remove -DG_DISABLE_DEPRECATED

This causes prototypes like g_mutex_new() to disappear, causing the
prototype to be assumed incorrectly, causing crashes.

For now I still want to be able to build against either glib-2-30 or
glib master, so just remove the -DG_DISABLE_DEPRECATED.

jwendell/libsoup,fanc999/libsoup,Distrotech/libsoup,jwendell/libsoup,Distrotech/libsoup,Distrotech/libsoup,jwendell/libsoup,fanc999/libsoup,fanc999/libsoup,fanc999/libsoup,jwendell/libsoup,Distrotech/libsoup,jwendell/libsoup,fanc999/libsoup,Distrotech/libsoup