Fix the Math facade (improper annotation): @Deprecated(description).
Fix the Math facade (improper annotation): @Deprecated(description).

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MOE_MIGRATED_REVID=128204779

chalin/angular2,chalin/angular2,matanlurey/angular,matanlurey/angular,chalin/angular2,kevmoo/angular,angulardart/angular,angulardart/angular,angulardart/angular,kevmoo/angular,matanlurey/angular,kevmoo/angular