Remove fontFace type (#596)

Author: Renan R. Oliveira

packages/emotion/types/index.d.ts

@@ -35,8 +35,6 @@ export const injectGlobal: CreateStyles<void>;
 
 export const keyframes: CreateStyles<string>;
 
-export const fontFace: CreateStyles<void>;
-
 export function getRegisteredStyles(registeredStyles: string[], classNames: string): string;
 
 export function cx(...interpolations: Interpolation[]): string;

packages/emotion/types/tests.tsx

@@ -4,7 +4,6 @@ import {
   injectGlobal,
   flush,
   css,
-  fontFace,
   hydrate,
   cx
 } from '../';
@@ -63,10 +62,6 @@ css(
 
 css(null);
 
-fontFace`
-  font-family: 'Foo';
-`;
-
 injectGlobal`
   #foo {
     font-face: 'Foo';