I use 1.7.10 Minecraft. I have many pages with Forge Microblocks in Not Enough Items and no one uses them. How can I remove items from Not Enough Items?
AgrarianSkies, a commonly used modpack, employs a mod called gtfoMicroblocks. What it does is simply what you said, removed all microblock items from NEI. It does not affect any other part of the game.
gtfoMicroblocks link: http://openeye.openmods.info/mod/gtfomicroblocks