Fix builds for iOS Simulator
Fix builds for iOS Simulator

Revert special code for XCode 7.2 that adds `-destination` flag when building for iOS Simulator. Revert to original code, as it's working fine with all other XCode versions.

NativeScript/nativescript-cli,NativeScript/nativescript-cli,tsvetie/nativescript-cli,NathanaelA/nativescript-cli,NathanaelA/nativescript-cli,tsvetie/nativescript-cli,tsvetie/nativescript-cli,NathanaelA/nativescript-cli,tsvetie/nativescript-cli,NativeScript/nativescript-cli,NathanaelA/nativescript-cli,tsvetie/nativescript-cli,NativeScript/nativescript-cli