Hey, I was wondering if there was a way to remove the gallery categories and just have all the photos together on a main index?

Hi. I think gallery is designed to store pictures in either album in the category or category itself. You can replace the standard gallery menu with custom link to that category if you want your member to see only that specific category.

its not designed to store pictures in the gallery or itself, its designed to put pictures in a category, I'm not wanting to provide an external link to a category i want to do away with the categories, instagram does not have categories, its a tedious idea to categorize things in this day and age.