Perf: minor optimization in module_lr

[maki49]

• Do not produce "running_scf.log" when esolver_type==lr
• Fix a memory waste in LR_Util::matsym

[mohanchen]

‘lr' should not be a special case that appears in deciding the name of running log. This is not a good enough design. I would suggest the developer to think a more appropriate way to implement the function.

[maki49]

‘lr' should not be a special case that appears in deciding the name of running log. This is not a good enough design. I would suggest the developer to think a more appropriate way to implement the function.

I've changed the code to the new solution to avoid log-coverage: if esolver_type=="lr", modify calculation to "nscf".