Removed unused MatrixAffine2 forward declaration from Rect.h
Removed unused MatrixAffine2 forward declaration from Rect.h

sosolimited/Cinder,2666hz/Cinder,morbozoo/sonyHeadphones,sosolimited/Cinder,morbozoo/sonyHeadphones,sosolimited/Cinder,morbozoo/sonyHeadphones,2666hz/Cinder,sosolimited/Cinder,morbozoo/sonyHeadphones,2666hz/Cinder,2666hz/Cinder