Remove a couple of redundant requires

All the commands from those packages are autoloaded anyways, so
there's no need to require the packages before they are actually used.

modules/prelude-ivy.el

@@ -47,15 +47,11 @@
 
 ;; swiper provides enhanced buffer search
 
-(require 'swiper)
-
 (global-set-key "\C-s" 'swiper)
 
 
 ;; counsel supercharges a lot of commands with some ivy magic
 
-(require 'counsel)
-
 (global-set-key (kbd "M-x") 'counsel-M-x)
 (global-set-key (kbd "C-x C-f") 'counsel-find-file)
 (global-set-key (kbd "<f1> f") 'counsel-describe-function)