Remove redundant definitions of min/max
These aren't used and they conflict with other sources in single-source
build.
diff --git a/encoder/basisu_resampler.cpp b/encoder/basisu_resampler.cpp
index e193ce8..f4cedf0 100644
--- a/encoder/basisu_resampler.cpp
+++ b/encoder/basisu_resampler.cpp
@@ -15,14 +15,6 @@
#include "basisu_resampler.h"
#include "basisu_resampler_filters.h"
-#ifndef max
-#define max(a, b) (((a) > (b)) ? (a) : (b))
-#endif
-
-#ifndef min
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-#endif
-
#define RESAMPLER_DEBUG 0
namespace basisu
