Fixing basis_enc.h so it doesn't include itself
diff --git a/basisu_enc.h b/basisu_enc.h
index 99462f4..7d42121 100644
--- a/basisu_enc.h
+++ b/basisu_enc.h
@@ -14,7 +14,6 @@
 // limitations under the License.
 #pragma once
 #include "transcoder/basisu.h"
-#include "basisu_enc.h"
 #include "transcoder/basisu_transcoder_internal.h"
 
 #include <mutex>