Removed old iOS-only project and demos

Xcode-iOS/Demos/src/common.h

@@ -1,10 +0,0 @@
-/*
- *  common.h
- *  written by Holmes Futrell
- *  use however you want
- */
-
-extern int randomInt(int min, int max);
-extern float randomFloat(float min, float max);
-extern void fatalError(const char *string);
-extern double updateDeltaTime(void);