Remove resolved FIX comment in eco_food_web_chaos_3sp.bngl

[akutuva21]

Removed a resolved FIX comment from Examples/ecology/ecofoodwebchaos3sp/eco_food_web_chaos_3sp.bngl because the resource dynamics (regeneration and decay) had already been implemented correctly below it. Tested metadata validation and manifest generation.

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PR created automatically by Jules for task 12033588725295054439 started by @akutuva21

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