Revert resolve templates in CmdCp #3918

[Flamefire]

This reverts commit 7429645, from #3918

            for pattern, regex_cmd in self.cfg.get_ref('cmds_map'):
                pattern = pattern % self.cfg.template_values
                regex_cmd = regex_cmd % self.cfg.template_values

Is equivalent to for pattern, regex_cmd in self.cfg['cmds_map']: because the index-access resolves the template and does so recursively.
Hence we can keep the simpler code.

[Flamefire]

Test report by @Flamefire

Overview of tested easyconfigs (in order)

• SUCCESS STREAM-5.10-GCC-11.3.0.eb
• SUCCESS STREAM-5.10-intel-compilers-2022.2.1.eb
• SUCCESS STREAM-5.10-intel-compilers-2024.2.0.eb

Build succeeded for 3 out of 3 (3 easyconfigs in total)
login1.barnard.hpc.tu-dresden.de - Linux RHEL 8.9 (Ootpa), x86_64, Intel(R) Xeon(R) Platinum 8470 (sapphirerapids), Python 3.9.18
See https://gist.github.com/Flamefire/fcf5c06fdea9241c28a782926f9f3729 for a full test report.