Do you want to remove Spotlight search from your iPhone? Well, You can easily remove Spotlight search from your iPhone by using a jailbreak tweak available in Cydia. The name of this tweak is NoSpot. After you have installed this tweak on your iPhone it will completely remove Spotlight search from your iPhone. You should note that no app icon will be added to the springboard of your iPhone and also no additional settings will be added in the settings app of your iPhone. NoSpot tweak supports both iPhone and iPad.
You will need to have jailbroken iPhone or iPad to install this tweak. If you don’t have jailbroken iPhone or iPad then simply follow the step by step instructions posted here to jailbreak your iPhone or iPad on iOS 4.2.1 with Redsn0w. You download NoSpot tweak from Cydia under BigBoss repo for free of cost.