Fixed build for platforms with only libusb hidapi implementations
diff --git a/src/hidapi/SDL_hidapi.c b/src/hidapi/SDL_hidapi.c
index 1093475..0b07716 100644
--- a/src/hidapi/SDL_hidapi.c
+++ b/src/hidapi/SDL_hidapi.c
@@ -98,8 +98,6 @@ static const SDL_UDEV_Symbols *udev_ctx = NULL;
#include "windows/hid.c"
#define HAVE_PLATFORM_BACKEND 1
#define udev_ctx 1
-#else
-#error Need a hid.c for this platform!
#endif
#undef hid_device_