How to Remove the SeasonHUD Calendar Slot in Any World
Enabling the Pack When Creating a New World
Because this tool is a data pack rather than a global mod, you must apply it to each world where you want a cleaner inventory. On the world creation screen, click the Data Packs tab before generating your save. Find the Disable Season HUD Curios Trinkets Accessories Slot Data Pack in the available column on the left and click its arrow icon to move it into the selected column on the right. Click Done and create your world as normal. Both the standard and Fabric versions of the season tracker recognize the pack automatically once you load in.
Adding the Pack to an Existing Save
To clear the extra calendar slot from a world you already play on, exit to the singleplayer menu, select your save, and click Edit. Choose Open World Folder and open the datapacks directory inside. Move the data pack into this folder, then load back into your world. If you added the file while the world was already open, run /reload in chat or leave and rejoin the save so the main mod's built-in Curios, Trinkets, and Accessories support turns off and frees up space on your character's accessory screen.