chore: Remove unused imports

Closes #624

modules/angular2/src/core/annotations/template.js

@@ -1,5 +1,4 @@
 import {ABSTRACT, CONST, Type} from 'angular2/src/facade/lang';
-import {List} from 'angular2/src/facade/collection';
 
 export class Template {
   url:any; //string;

modules/angular2/src/core/application.js

@@ -8,7 +8,6 @@ import {Parser, Lexer, ChangeDetection, dynamicChangeDetection, jitChangeDetecti
 import {TemplateLoader} from './compiler/template_loader';
 import {TemplateResolver} from './compiler/template_resolver';
 import {DirectiveMetadataReader} from './compiler/directive_metadata_reader';
-import {DirectiveMetadata} from './compiler/directive_metadata';
 import {List, ListWrapper} from 'angular2/src/facade/collection';
 import {Promise, PromiseWrapper} from 'angular2/src/facade/async';
 import {VmTurnZone} from 'angular2/src/core/zone/vm_turn_zone';

modules/angular2/src/core/compiler/compiler.js

@@ -13,9 +13,7 @@ import {createDefaultSteps} from './pipeline/default_steps';
 import {TemplateLoader} from './template_loader';
 import {TemplateResolver} from './template_resolver';
 import {DirectiveMetadata} from './directive_metadata';
-import {Component} from '../annotations/annotations';
 import {Template} from '../annotations/template';
-import {Content} from './shadow_dom_emulation/content_tag';
 import {ShadowDomStrategy} from './shadow_dom_strategy';
 import {CompileStep} from './pipeline/compile_step';
 

modules/angular2/src/core/compiler/element_binder.js

@@ -1,6 +1,4 @@
 import {ProtoElementInjector} from './element_injector';
-import {FIELD} from 'angular2/src/facade/lang';
-import {MapWrapper} from 'angular2/src/facade/collection';
 import {DirectiveMetadata} from './directive_metadata';
 import {List, Map} from 'angular2/src/facade/collection';
 import {ProtoView} from './view';

modules/angular2/src/core/compiler/pipeline/compile_control.js

@@ -1,6 +1,5 @@
 import {isBlank} from 'angular2/src/facade/lang';
 import {List, ListWrapper} from 'angular2/src/facade/collection';
-import {DOM, Element} from 'angular2/src/facade/dom';
 import {CompileElement} from './compile_element';
 import {CompileStep} from './compile_step';
 

modules/angular2/src/core/compiler/pipeline/compile_pipeline.js

@@ -4,7 +4,6 @@ import {Element, Node, DOM} from 'angular2/src/facade/dom';
 import {CompileElement} from './compile_element';
 import {CompileControl} from './compile_control';
 import {CompileStep} from './compile_step';
-import {DirectiveMetadata} from '../directive_metadata';
 
 /**
  * CompilePipeline for executing CompileSteps recursively for

modules/angular2/src/core/compiler/pipeline/compile_step.js

@@ -1,6 +1,5 @@
 import {CompileElement} from './compile_element';
 import {CompileControl} from './compile_control';
-import {DirectiveMetadata} from '../directive_metadata';
 
 /**
  * One part of the compile process.

modules/angular2/src/core/compiler/pipeline/directive_parser.js

@@ -9,7 +9,6 @@ import {Component, Viewport} from '../../annotations/annotations';
 import {CompileStep} from './compile_step';
 import {CompileElement} from './compile_element';
 import {CompileControl} from './compile_control';
-import {ShadowDomStrategy} from '../shadow_dom_strategy';
 
 /**
  * Parses the directives on a single element. Assumes ViewSplitter has already created

modules/angular2/src/core/compiler/pipeline/element_binder_builder.js

@@ -6,11 +6,7 @@ import {reflector} from 'angular2/src/reflection/reflection';
 
 import {Parser, ProtoChangeDetector} from 'angular2/change_detection';
 
-import {Component, Directive} from '../../annotations/annotations';
 import {DirectiveMetadata} from '../directive_metadata';
-import {ProtoView, ElementPropertyMemento, DirectivePropertyMemento} from '../view';
-import {ProtoElementInjector} from '../element_injector';
-import {ElementBinder} from '../element_binder';
 
 import {CompileStep} from './compile_step';
 import {CompileElement} from './compile_element';

modules/angular2/src/core/compiler/pipeline/property_binding_parser.js

@@ -1,6 +1,5 @@
 import {isPresent, isBlank, RegExpWrapper, BaseException} from 'angular2/src/facade/lang';
 import {MapWrapper} from 'angular2/src/facade/collection';
-import {TemplateElement} from 'angular2/src/facade/dom';
 
 import {Parser, AST, ExpressionWithSource} from 'angular2/change_detection';
 

modules/angular2/src/core/compiler/pipeline/proto_element_injector_builder.js

@@ -1,7 +1,6 @@
 import {isPresent, isBlank} from 'angular2/src/facade/lang';
 import {ListWrapper, MapWrapper} from 'angular2/src/facade/collection';
 
-import {Key} from 'angular2/di';
 import {ProtoElementInjector, ComponentKeyMetaData, DirectiveBinding} from '../element_injector';
 
 import {CompileStep} from './compile_step';

modules/angular2/src/core/compiler/shadow_dom_strategy.js

@@ -4,7 +4,6 @@ import {List, ListWrapper} from 'angular2/src/facade/collection';
 import {View} from './view';
 import {Content} from './shadow_dom_emulation/content_tag';
 import {LightDom} from './shadow_dom_emulation/light_dom';
-import {DirectiveMetadata} from './directive_metadata';
 
 export class ShadowDomStrategy {
   attachTemplate(el:Element, view:View){}

modules/angular2/src/core/compiler/template_loader.js

@@ -1,4 +1,3 @@
-import {Promise, PromiseWrapper} from 'angular2/src/facade/async';
 import {isBlank, isPresent, BaseException, stringify} from 'angular2/src/facade/lang';
 import {DOM, Element} from 'angular2/src/facade/dom';
 import {StringMapWrapper} from 'angular2/src/facade/collection';

modules/angular2/src/core/compiler/view.js

@@ -12,7 +12,6 @@ import {FIELD, IMPLEMENTS, int, isPresent, isBlank, BaseException} from 'angular
 import {Injector} from 'angular2/di';
 import {NgElement} from 'angular2/src/core/dom/element';
 import {ViewContainer} from './view_container';
-import {Content} from './shadow_dom_emulation/content_tag';
 import {LightDom, DestinationLightDom} from './shadow_dom_emulation/light_dom';
 import {ShadowDomStrategy} from './shadow_dom_strategy';
 import {ViewPool} from './view_pool';