diff --git a/modules/@angular/compiler-cli/src/codegen.ts b/modules/@angular/compiler-cli/src/codegen.ts
index 2bc5561a6537e6..7718a31ff60b23 100644
--- a/modules/@angular/compiler-cli/src/codegen.ts
+++ b/modules/@angular/compiler-cli/src/codegen.ts
@@ -11,7 +11,6 @@
  * Intended to be used in a build step.
  */
 import * as compiler from '@angular/compiler';
-import {ViewEncapsulation} from '@angular/core';
 import {AngularCompilerOptions, NgcCliOptions} from '@angular/tsc-wrapped';
 import {readFileSync} from 'fs';
 import * as path from 'path';
@@ -19,7 +18,6 @@ import * as ts from 'typescript';
 
 import {CompilerHost, CompilerHostContext, ModuleResolutionHostAdapter} from './compiler_host';
 import {PathMappedCompilerHost} from './path_mapped_compiler_host';
-import {Console} from './private_import_core';
 
 const GENERATED_META_FILES = /\.json$/;
 
diff --git a/modules/@angular/compiler/src/directive_wrapper_compiler.ts b/modules/@angular/compiler/src/directive_wrapper_compiler.ts
index 48673a7a076ba4..edce015bec2b74 100644
--- a/modules/@angular/compiler/src/directive_wrapper_compiler.ts
+++ b/modules/@angular/compiler/src/directive_wrapper_compiler.ts
@@ -18,7 +18,7 @@ import {DEFAULT_INTERPOLATION_CONFIG} from './ml_parser/interpolation_config';
 import {ClassBuilder, createClassStmt} from './output/class_builder';
 import * as o from './output/output_ast';
 import {ParseError, ParseErrorLevel, ParseLocation, ParseSourceFile, ParseSourceSpan} from './parse_util';
-import {Console, LifecycleHooks, isDefaultChangeDetectionStrategy} from './private_import_core';
+import {Console, LifecycleHooks} from './private_import_core';
 import {ElementSchemaRegistry} from './schema/element_schema_registry';
 import {BindingParser} from './template_parser/binding_parser';
 import {BoundElementPropertyAst, BoundEventAst} from './template_parser/template_ast';
diff --git a/modules/@angular/compiler/test/selector_spec.ts b/modules/@angular/compiler/test/selector_spec.ts
index c39a1d51b88ed5..36825c414aa998 100644
--- a/modules/@angular/compiler/test/selector_spec.ts
+++ b/modules/@angular/compiler/test/selector_spec.ts
@@ -7,7 +7,6 @@
  */
 
 import {CssSelector, SelectorMatcher} from '@angular/compiler/src/selector';
-import {createElementCssSelector} from '@angular/compiler/src/template_parser/template_parser';
 import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
 import {el} from '@angular/platform-browser/testing/browser_util';
 
diff --git a/modules/@angular/language-service/test/completions_spec.ts b/modules/@angular/language-service/test/completions_spec.ts
index 54dda028d01e70..db4dc1e2f8fbb5 100644
--- a/modules/@angular/language-service/test/completions_spec.ts
+++ b/modules/@angular/language-service/test/completions_spec.ts
@@ -10,17 +10,16 @@ import 'reflect-metadata';
 import * as ts from 'typescript';
 
 import {createLanguageService} from '../src/language_service';
-import {Completions, Diagnostic, Diagnostics} from '../src/types';
+import {Completions} from '../src/types';
 import {TypeScriptServiceHost} from '../src/typescript_host';
 
 import {toh} from './test_data';
-import {MockTypescriptHost, includeDiagnostic, noDiagnostics} from './test_utils';
+import {MockTypescriptHost} from './test_utils';
 
 describe('completions', () => {
   let documentRegistry = ts.createDocumentRegistry();
   let mockHost = new MockTypescriptHost(['/app/main.ts', '/app/parsing-cases.ts'], toh);
   let service = ts.createLanguageService(mockHost, documentRegistry);
-  let program = service.getProgram();
   let ngHost = new TypeScriptServiceHost(mockHost, service);
   let ngService = createLanguageService(ngHost);
   ngHost.setSite(ngService);
diff --git a/modules/@angular/language-service/test/definitions_spec.ts b/modules/@angular/language-service/test/definitions_spec.ts
index 4aaeb9216142e3..99080731f495a5 100644
--- a/modules/@angular/language-service/test/definitions_spec.ts
+++ b/modules/@angular/language-service/test/definitions_spec.ts
@@ -9,7 +9,7 @@
 import * as ts from 'typescript';
 
 import {createLanguageService} from '../src/language_service';
-import {Completions, Diagnostic, Diagnostics, Span} from '../src/types';
+import {Span} from '../src/types';
 import {TypeScriptServiceHost} from '../src/typescript_host';
 
 import {toh} from './test_data';
@@ -20,7 +20,6 @@ describe('definitions', () => {
   let documentRegistry = ts.createDocumentRegistry();
   let mockHost = new MockTypescriptHost(['/app/main.ts', '/app/parsing-cases.ts'], toh);
   let service = ts.createLanguageService(mockHost, documentRegistry);
-  let program = service.getProgram();
   let ngHost = new TypeScriptServiceHost(mockHost, service);
   let ngService = createLanguageService(ngHost);
   ngHost.setSite(ngService);
diff --git a/modules/@angular/language-service/test/diagnostics_spec.ts b/modules/@angular/language-service/test/diagnostics_spec.ts
index 7385cc4e93aad9..c0df4daf63102f 100644
--- a/modules/@angular/language-service/test/diagnostics_spec.ts
+++ b/modules/@angular/language-service/test/diagnostics_spec.ts
@@ -9,7 +9,7 @@
 import * as ts from 'typescript';
 
 import {createLanguageService} from '../src/language_service';
-import {Completions, Diagnostic, Diagnostics} from '../src/types';
+import {Diagnostics} from '../src/types';
 import {TypeScriptServiceHost} from '../src/typescript_host';
 
 import {toh} from './test_data';
@@ -19,7 +19,6 @@ describe('diagnostics', () => {
   let documentRegistry = ts.createDocumentRegistry();
   let mockHost = new MockTypescriptHost(['/app/main.ts', '/app/parsing-cases.ts'], toh);
   let service = ts.createLanguageService(mockHost, documentRegistry);
-  let program = service.getProgram();
   let ngHost = new TypeScriptServiceHost(mockHost, service);
   let ngService = createLanguageService(ngHost);
   ngHost.setSite(ngService);
diff --git a/modules/@angular/language-service/test/hover_spec.ts b/modules/@angular/language-service/test/hover_spec.ts
index b476957009a24d..5cf7a8a926fa88 100644
--- a/modules/@angular/language-service/test/hover_spec.ts
+++ b/modules/@angular/language-service/test/hover_spec.ts
@@ -11,17 +11,16 @@ import 'reflect-metadata';
 import * as ts from 'typescript';
 
 import {createLanguageService} from '../src/language_service';
-import {Hover, HoverTextSection} from '../src/types';
+import {Hover} from '../src/types';
 import {TypeScriptServiceHost} from '../src/typescript_host';
 
 import {toh} from './test_data';
-import {MockTypescriptHost, includeDiagnostic, noDiagnostics} from './test_utils';
+import {MockTypescriptHost} from './test_utils';
 
 describe('hover', () => {
   let documentRegistry = ts.createDocumentRegistry();
   let mockHost = new MockTypescriptHost(['/app/main.ts', '/app/parsing-cases.ts'], toh);
   let service = ts.createLanguageService(mockHost, documentRegistry);
-  let program = service.getProgram();
   let ngHost = new TypeScriptServiceHost(mockHost, service);
   let ngService = createLanguageService(ngHost);
   ngHost.setSite(ngService);