entt: remove unused substituteInPlace
entt: remove unused substituteInPlace

substituteStream(): WARNING: pattern '${prefix}/@CMAKE_INSTALL_INCLUDEDIR@' doesn't match anything in file 'cmake/in/entt.pc.in'

It looks like https://github.com/skypjack/entt/issues/890 has been resolved.
NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs