Remove templates for setting/getting style properties
Remove templates for setting/getting style properties

Summary:
@public

Replaces the `StyleProp` template with a simple setter macro / inlined getter code.

The template was introduced to replace more extensive macros that would generate function signatures, too.
Here, we keep the spirit of that change by only generating function bodies.

Reviewed By: SidharthGuglani

Differential Revision: D13233687

fbshipit-source-id: 218a7d5edb489b43a66c8c9d6156f74feefd2227

pandiaraj44/react-native,exponentjs/react-native,myntra/react-native,arthuralee/react-native,facebook/react-native,javache/react-native,hoangpham95/react-native,janicduplessis/react-native,janicduplessis/react-native,javache/react-native,exponentjs/react-native,janicduplessis/react-native,arthuralee/react-native,exponent/react-native,arthuralee/react-native,javache/react-native,pandiaraj44/react-native,janicduplessis/react-native,javache/react-native,hoangpham95/react-native,exponentjs/react-native,pandiaraj44/react-native,javache/react-native,hammerandchisel/react-native,hammerandchisel/react-native,hammerandchisel/react-native,exponent/react-native,myntra/react-native,janicduplessis/react-native,facebook/react-native,hoangpham95/react-native,facebook/react-native,exponent/react-native,exponentjs/react-native,janicduplessis/react-native,hammerandchisel/react-native,facebook/react-native,hoangpham95/react-native,hoangpham95/react-native,hammerandchisel/react-native,pandiaraj44/react-native,pandiaraj44/react-native,myntra/react-native,exponentjs/react-native,arthuralee/react-native,hoangpham95/react-native,facebook/react-native,myntra/react-native,exponent/react-native,myntra/react-native,javache/react-native,javache/react-native,myntra/react-native,hammerandchisel/react-native,hammerandchisel/react-native,janicduplessis/react-native,myntra/react-native,pandiaraj44/react-native,exponentjs/react-native,exponent/react-native,hoangpham95/react-native,pandiaraj44/react-native,facebook/react-native,javache/react-native,pandiaraj44/react-native,janicduplessis/react-native,javache/react-native,exponent/react-native,exponentjs/react-native,myntra/react-native,facebook/react-native,facebook/react-native,arthuralee/react-native,exponent/react-native,myntra/react-native,exponent/react-native,facebook/react-native,hammerandchisel/react-native,hoangpham95/react-native,exponentjs/react-native