Fixed definition of UNCOMPRESSED_R8G8B8A8 (#1740)

src/raylib.h

@@ -165,7 +165,7 @@
 #define FILTER_POINT        TEXTURE_FILTER_POINT
 #define FILTER_BILINEAR     TEXTURE_FILTER_BILINEAR
 #define MAP_DIFFUSE         MATERIAL_MAP_DIFFUSE
-#define PIXELFORMAT_UNCOMPRESSED_R8G8B8A8   PIXELFORMAT_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8
+#define UNCOMPRESSED_R8G8B8A8   PIXELFORMAT_UNCOMPRESSED_R8G8B8A8
 
 //----------------------------------------------------------------------------------
 // Structures Definition