refactor: remove no-longer-needed MSVC adaptations

Author: szhorvat

src/lbfgs.c

@@ -65,20 +65,12 @@ licence.
 #include "config.h"
 #endif/*HAVE_CONFIG_H*/
 
-#ifndef _MSC_VER
 #include <stdint.h>
-#endif
-
 #include <stdio.h>
 #include <math.h>
 
 #include "lbfgs.h"
 
-#ifdef  _MSC_VER
-#define inline  __inline
-typedef unsigned int uint32_t;
-#endif/*_MSC_VER*/
-
 #if     defined(USE_SSE) && defined(__SSE2__) && LBFGS_FLOAT == 64
 /* Use SSE2 optimization for 64bit double precision. */
 #include "arithmetic_sse_double.h"

src/plfit_mt.h

@@ -14,12 +14,7 @@
 #ifndef __PLFIT_MT_H__
 #define __PLFIT_MT_H__
 
-/* VS 2010, i.e. _MSC_VER == 1600, already has stdint.h */
-#if defined(_MSC_VER) && _MSC_VER < 1600
-#  define uint32_t unsigned __int32
-#else
-#  include <stdint.h>
-#endif
+#include <stdint.h>
 
 #undef __BEGIN_DECLS
 #undef __END_DECLS