liblzma: Remove incorrect #ifdef from range_common.h.
In most cases it was harmless but it could affect some
custom build systems.
Thanks to Pippijn van Steenhoven.
diff --git a/src/liblzma/rangecoder/range_common.h b/src/liblzma/rangecoder/range_common.h
index 0e64241..2c74dc1 100644
--- a/src/liblzma/rangecoder/range_common.h
+++ b/src/liblzma/rangecoder/range_common.h
@@ -14,9 +14,7 @@
#ifndef LZMA_RANGE_COMMON_H
#define LZMA_RANGE_COMMON_H
-#ifdef HAVE_CONFIG_H
-# include "common.h"
-#endif
+#include "common.h"
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