fix(@schematics/angular): remove empty lines

The recet removal of enableProdMode in 283b564 introduced unnecessary empty lines in main.ts

Author: cexbrayat

packages/schematics/angular/application/files/src/main.ts.template

@@ -1,14 +1,13 @@
-<% if(!!viewEncapsulation) { %>import { ViewEncapsulation } from '@angular/core';<% }%>
-import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+<% if(!!viewEncapsulation) { %>import { ViewEncapsulation } from '@angular/core';
+<% }%>import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
 
 import { AppModule } from './app/app.module';
 
 <% if(!!viewEncapsulation) { %>
 platformBrowserDynamic().bootstrapModule(AppModule, {
   defaultEncapsulation: ViewEncapsulation.<%= viewEncapsulation %>
 })
-  .catch(err => console.error(err));
-<% } else { %>
+  .catch(err => console.error(err));<% } else { %>
 platformBrowserDynamic().bootstrapModule(AppModule)
   .catch(err => console.error(err));
-<% } %>
+<% } %>