contrib: guix: Remove ssp spec file hack
contrib: guix: Remove ssp spec file hack

This hack is no longer needed after fixing our cross-compilation search
paths.


Former-commit-id: 970b27f7768cf7d645fa279f0f7cc3f41d5d090d
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin