fix(@schematics/angular): remove strict prompt

From initial feedback from devrel we should remove the prompt

Author: alan-agius4

packages/schematics/angular/ng-new/schema.json

@@ -131,8 +131,7 @@
     "strict": {
       "description": "Creates a workspace with stricter type checking and build optimization options.",
       "type": "boolean",
-      "default": false,
-      "x-prompt": "Create a workspace with stricter type checking and more efficient production optimizations?"
+      "default": false
     },
     "legacyBrowsers": {
       "type": "boolean",