fix(@angular/cli): avoid using number inquirer prompt in schematic prompts

The number prompt type currently prevents correction of an invalid user entered value after schema validation. An input type is now used instead.  Type coercion based on the schema type(s) already occurs during the filter phase for the inquirer question.

Author: clydin

packages/angular/cli/models/schematic-command.ts

@@ -356,17 +356,6 @@ export abstract class SchematicCommand<
                     };
                 });
                 break;
-              case 'input':
-                if (
-                  definition.propertyTypes.size === 1 &&
-                  (definition.propertyTypes.has('number') ||
-                    definition.propertyTypes.has('integer'))
-                ) {
-                  question.type = 'number';
-                } else {
-                  question.type = 'input';
-                }
-                break;
               default:
                 question.type = definition.type;
                 break;