Fix for issue 1198

[gtribello]

Description

This is a fix for issue #1198

The reference to the Keywords object is Action is only valid during construction. The underlying object is destroyed after the constructor is finished, so the reference to Keywords is no longer accessible. The keywords.exists("NO_ACTION_LOG") is thus not available if you call error during calculate. If I just remove that if statement it all works fine.

Target release

I would like my code to appear in release 2.10

Type of contribution

• changes to code or doc authored by PLUMED developers, or additions of code in the core or within the default modules
• changes to a module not authored by you
• new module contribution or edit of a module authored by you

Copyright

• I agree to transfer the copyright of the code I have written to the PLUMED developers or to the author of the code I am modifying.

• the module I added or modified contains a COPYRIGHT file with the correct license information. Code should be released under an open source license. I also used the command cd src && ./header.sh mymodulename in order to make sure the headers of the module are correct.

Tests

• I added a new regtest or modified an existing regtest to validate my changes.
• I verified that all regtests are passed successfully on GitHub Actions.