[johnpaulalex]

Description of changes

This PR removes leftover Fortran comments for gccanopy_patch allocation and history fields in src/biogeophys/CanopyStateType.F90. The gccanopy_patch variable itself was deleted from the struct over a decade ago during the clm4_5_12_r192 NGEE-T ED refactoring (see massive snapshot commit 85b9d5b83).

This is a zero-impact change consisting solely of deleting ! comment blocks.

Inspired by reviving the many commented-out history fields in #4172.

Description of generative AI usage:
Google Antigravity was used to write the code and tests, followed by human-guided verification.

Specific notes

Contributors other than yourself, if any:

• None

CTSM issues resolved or otherwise addressed, if any:

• None

Any user interface changes (namelist or namelist defaults changes)?

• None

Testing planned or performed, if any:

• Viewed git diff and verified that only commented-out lines are being deleted.
• Executed local Mac Fortran unit tests (python3 run_tests.py --test-spec-dir src) and verified that the CanopyStateType.F90.o object compiles cleanly.

Requirements before merge:

• I have followed the CTSM contribution guidelines.
• The code in this PR branch builds with no errors.
• The code in this PR branch runs with no errors. Briefly describe tested configuration(s): Local Mac Fortran Unit Tests
• This either (a) does not change answers, (b) it only changes answers at roundoff level, or (c) I have performed a scientific evaluation of the answer changes. Which?: (a)
• I have reviewed relevant parts of the CLM documentation Tech Note or User's Guide to determine if anything needs to be changed or added. If it does, describe: None needed.
• This PR either (a) does not create a need to update the documentation or (b) includes required documentation updates (see guidelines for contributing documentation). Which?: (a)

[wwieder]

This looks like a minor code clean up. @samsrabin can you add this to B4B dev?

[samsrabin]

@wwieder No, because it requires complete aux_clm testing before merging to b4b-dev. It'll come in next time.

[samsrabin]

Oh, sorry, I just noticed those lines are comments. Merging.