stbi: disable unused img decoders

saves a little space

Author: MartinPulec

src/utils/image_delegate.c

@@ -56,6 +56,13 @@ static void
 gpujpeg_cuda_free_host(void* ptr);
 static void*
 gpujpeg_cuda_realloc_sized_host(void* ptr, int oldsz, int newsz);
+#define STBI_NO_JPEG
+#define STBI_NO_PNG
+#define STBI_NO_PSD
+#define STBI_NO_GIF
+#define STBI_NO_HDR
+#define STBI_NO_PIC
+#define STBI_NO_PNM
 // we want use custom allocator but only way to do this in stbi is to define the below
 #define STBI_MALLOC gpujpeg_cuda_malloc_host
 #define STBI_FREE gpujpeg_cuda_free_host