typed_slot_rep: =delete unimplemented copy and move operations.
typed_slot_rep: =delete unimplemented copy and move operations.

Prevent, copy assignment operator, move constructor and move
assignment operators from being generated automatically.
These are never used, but this will make sure of that.
See https://bugzilla.gnome.org/show_bug.cgi?id=756484#c5

Distrotech/libsigcxx2,Distrotech/libsigcxx2,Distrotech/libsigcxx2