Button: Duplicate Sass Includes

[jrock2004]

I think there is an extra includes and I believe it can be removed

mbkit/packages/Button/src/Button.scss

Lines 272 to 274 in 5fd3f22

	&.simpleText {
	@include buttonStyles($background, $background, $secondary-base, $secondary-base);
	@include buttonStyles($background, $background, $secondary-base, $secondary-base);