Revert "feat(schematics): add initial schematics utils (#9451)"

This reverts commit b1b41c6.

Author: mmalerba

.github/CODEOWNERS

@@ -170,9 +170,6 @@
 /src/e2e-app/slide-toggle/**                       @devversion
 /src/e2e-app/tabs/**                               @andrewseguin
 
-# Schematics
-/schematics/**                                     @amcdnl
-
 # Universal app
 /src/universal-app/**                              @jelbourn
 

.gitignore

@@ -38,7 +38,3 @@ npm-debug.log
 testem.log
 /.chrome
 /.git
-
-# schematics
-/schematics/**/*.js
-/schematics/**/*.map