nixos/treewide: Move rename.nix imports to their respective modules

A centralized list for these renames is not good because:
- It breaks disabledModules for modules that have a rename defined
- Adding/removing renames for a module means having to find them in the
central file
- Merge conflicts due to multiple people editing the central file

nixos/modules/misc/documentation.nix

@@ -67,6 +67,11 @@ let
 in
 
 {
+  imports = [
+    (mkRenamedOptionModule [ "programs" "info" "enable" ] [ "documentation" "info" "enable" ])
+    (mkRenamedOptionModule [ "programs" "man"  "enable" ] [ "documentation" "man"  "enable" ])
+    (mkRenamedOptionModule [ "services" "nixosManual" "enable" ] [ "documentation" "nixos" "enable" ])
+  ];
 
   options = {