fix(@angular/cli): remove unneeded dependencies

[hansl]

No description provided.

[googlebot]

CLAs look good, thanks!

[Brocco]

If you're dropping @angular/core shouldn't you also drop the recently added rxjs dependency?

[hansl]

Done.

[ahirhasmukh]

When I have tried to install npm install @angular/core@latest but it is doesn't update. Please give me solutions.

angular-cli-production@0.0.0 /var/www/html/loyalty-dapp
├── UNMET PEER DEPENDENCY @angular/core@2.4.7 invalid
├── UNMET PEER DEPENDENCY rxjs@5.0.0-beta.12
└── UNMET PEER DEPENDENCY zone.js@0.6.26

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.0.17: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN @angular/common@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/compiler@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/compiler-cli@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/core@2.4.7 requires a peer of rxjs@^5.0.1 but none was installed.
npm WARN @angular/core@2.4.7 requires a peer of zone.js@^0.7.2 but none was installed.
npm WARN @angular/forms@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/http@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/platform-browser@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/platform-browser-dynamic@2.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @angular/router@3.2.1 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN @ngtools/webpack@1.1.6 requires a peer of @angular/core@2.2.1 but none was installed.
npm WARN angular-in-memory-web-api@0.1.17 requires a peer of rxjs@5.0.0-rc.4 but none was installed.
npm WARN angular-in-memory-web-api@0.1.17 requires a peer of zone.js@^0.7.2 but none was installed.
npm WARN codelyzer@1.0.0-beta.4 requires a peer of @angular/core@~2.2.0 but none was installed.

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